Members & Club

Club Docs & Info

Ground information, equipment guides, playing resources, and club policies — all in one place.

Ground & Facilities Equipment Guide Building the Diamond Baseball Plays Club Policies
Where We Play

Ground & Facilities

Kings College, Guildford

Our home ground is a dedicated baseball diamond at Kings College School, Guildford — built and funded by the club. Planning began in 2018, construction completed in 2023.

Before the diamond was built, the Mavericks relied on borrowed pitches shared with other sports. Today, the club has a permanent home with real bases, a pitcher's mound, and dedicated outfield grass.

  • Dedicated baseball diamond with proper mound and bases
  • On-site parking available
  • Well served by public transport from Guildford town centre
  • Available for hire when the club is not using it

Training & Fixture Times

  • Adult Training: Thursday evenings at Kings College
  • Adult Fixtures: Sundays (home games at Kings College)
  • Junior Sessions: Saturday mornings at Kings College (9:30am–12:00pm)
  • Indoor Pre-Season: Christs College, Guildford (winter months)

Kings College School, Guildford, Surrey

Ground Development

Building the Diamond

How GBSC built the Kings College diamond from scratch — click any chapter to read the full story and see photos from the build.

1

Where to Start & Planning

Finding ground, securing landlord agreements, planning permission, and laying out the field correctly.

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2

Fencework

Designing and installing the permanent backstop — specifications, suppliers, and installation lessons.

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3

Dirt Work & Infield Construction

Excavating cut-outs, choosing the right materials, and compacting the infield correctly.

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4

Costs & Funding

Full itemised breakdown of the ~£30,000 project, plus how Sport England and BSUK grants were secured.

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5

Tools & Equipment

Plant hire for the build, hand tools, and the ongoing maintenance kit you'll need every season.

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6

After Season One (2023)

What worked, what didn't, how often the mound needs repairing, and what we'd do differently.

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7

After Season Two (2024)

Batting cage installation, drainage improvements, season maintenance stats, and what's coming next.

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1

Where to Start & Planning

Finding and Securing Ground

Rather than purchasing land outright, rent from local councils, schools, or institutions. Clubs investing in diamond construction and ongoing maintenance should negotiate favourable terms — you're adding value to their facilities, not just using them.

The Guildford club succeeded by partnering with Kings College, a school wanting to develop revenue-generating facilities and diversify beyond football. The advice: "Talk to local councils. Play the diversity card. Build up your club to ensure you have an active junior section, as that always helps with funding."

Essential Landlord Agreement Points

  • Scheduled usage days and seasonal availability
  • Operating hours and event duration
  • Parking arrangements (standard and overflow)
  • Facility access — changing rooms, toilets, water for maintenance
  • Line marking responsibilities
  • Site security and equipment storage
  • Cost structure and payment frequency
  • Liability and maintenance responsibilities

Planning Permission

Creating fencing typically requires planning permission and professionally drawn CAD scale drawings. Costs are typically £1,000–£1,500 depending on jurisdiction. Critical advice: "Try and get it right first time" — relocating structures after approval may require a full resubmission.

Field Layout Specifications

  • Outfield fence: 300–330 feet minimum
  • Home plate to backstop: ideally 45 feet (60 feet maximum)
  • Backstop height: 7 metres (21 feet)
  • Mound cut-out: 20-foot radius
  • Home plate cut-out: 26-foot diameter
  • Bases: 13-foot radius with 3-foot extensions along straight sides

Recommended fencing: double/twin wire 868 panel system, galvanised with green powder coating, 200mm × 50mm mesh. Central section 7 metres high across three 7.5m panels; two 10-metre wings at 2 metres with gates.

Soil & Safety

Kings College's diamond sits partly on clay and partly on sand/gravel, causing uneven drainage. Despite spring waterlogging pre-season, the field is fully playable by April–May. Foul balls are the biggest safety consideration — maintain minimum 40–50 metre distances from buildings wherever possible.

Photos from the planning phase

Kings College field July 2021 Field comparison with Farnham Park diamond Planning permission site plan Kings College annotated diamond layout
2

Fencework

Why Permanent Fencing Matters

A permanent backstop eliminates the burden of erecting and dismantling temporary netting before every session and fixture. A minimum height of 4–7 metres is recommended for effective ball containment.

Kings College Backstop Design

Three central panels (7m × 7.5m each) angled at approximately 120 degrees, complemented by mid-height protective sections (10m, 1.8m tall) flanking the structure, and lower sections (1.2m) extending toward first and third base. The backstop is positioned 45 feet from home plate — closer than the official 60 feet, which works better for developing players.

Suppliers We Contacted

  • Tate & Tonbridge — selected provider
  • Alpha Fencing
  • Zaun Fencing
  • Jacksons Fencing

Installation Considerations

  • Land access restrictions during the school calendar
  • Field drainage mapping before post placement
  • Precise post placement to specification
  • Gate orientation decisions (affects ball flow and access)
Tip: prepare a template requirements document and get comparable quotes from at least three suppliers. Fencework is typically the single largest cost item.

Backstop plan & fencework

Kings College backstop fencing plan Construction overview Diamond under construction Diamond under construction
3

Dirt Work & Infield Construction

Diamond Design

An ideal baseball diamond has a fully cut-out infield, but due to cost and shared-facility constraints the Kings College project uses five cut-out areas — quarter circles around 1st, 2nd, and 3rd base, plus the mound and home plate — with strips along the radius lines. This is the practical UK approach.

Marking Out

Correct layout requires at least three people. Ensure "the middle of each base is a line exactly halfway from both sides of your fence" to prevent misalignment. Tools needed: string lines, pegs, tape measures, and spray paint.

Cutting & Excavation

Hire machinery — a 1.5-tonne digger and 3-tonne dumper — rather than hand-digging. Remove grass and excavate to 15cm depth (5cm foundation + 10cm dirt mix). Budget approximately £300+ for disposal via grab lorry.

Materials

  • Foundation: MOT Grade 1 aggregate
  • Surface: baseball-specific dirt mix, approx. 70:10:20 sand-to-silt-to-clay ratio — Bourne Amenity supplies a "Baseball mix" at roughly £110/tonne
  • High-wear areas (batter's box, catcher's box, mound): unfired clay bricks from JJ Sharpe in Devon, approx. £550 per pallet of 400

Key Lessons

  • Compact in layers, not all at once
  • Build cut-outs slightly raised above ground level — compaction reduces volume by 25–50%
  • Moisture is essential for effective compaction

Dirt work in progress

Dirt work Dirt work Excavation Excavation Cut-out work Cut-out work Infield construction Infield construction Infield construction Infield levelling Infield levelling Compaction Compaction Finished infield Finished infield
4

Costs & Funding

Costs vary by circumstance and year — the club's 2019 quotes were approximately 30% lower than the 2022 actuals due to post-COVID price inflation. Use these as a planning baseline, not a guarantee.

Cost Breakdown

Fencework£17,500
Baseball Mix (35 ton)£4,000
Foundation MOT1 (18 ton)£1,050
Clay Bricks (400)£550
Equipment Hire£700
Disposal Services£550
Bases / Pitching Rubber£500
Tarps & Signage£800
Line Marker / Paint£350
Hose & Cart£190
Outfield Fence£100
Other Tools£400
Total project cost: approximately £30,000
Additional site preparation: approx. £710

How We Funded It

  • Sport England grant: £12,500 (requires matched funding)
  • BSUK facilities fund: £3,000
  • Internal fundraising and external donations
  • Club reserves built up over previous years

The matching requirement for Sport England means the club needed to raise roughly half the project cost independently before unlocking the grant.

The completed diamond

Completed diamond Completed diamond Completed diamond Completed diamond Completed diamond Completed diamond
5

Tools & Equipment

Plant Hire (One-Off Construction)

  • 3-tonne Dumper — transports sand and dirt, useful for moving 1-tonne bags across the diamond
  • 1.5-tonne Digger — essential for loading dirt and excavating cut-outs. Pay an experienced operator (~£150/day)
  • Turf Cutter — not recommended; too hard in summer, too wet in spring
  • Compactor — petrol-powered preferred; hire multiple units. Material must be moist for effective compaction

Hand Tools

  • Hose: 100m length with spray nozzle, connectors (~£60) and storage reel (~£100)
  • Landscaping rakes — for levelling dirt surfaces
  • Spades and shovels (3–4 units) — shovels preferred for aggregates
  • 10" Tamper — manual compaction in areas machines can't reach
  • Marker string & pegs — 100m lengths, two lines recommended
  • Wheelbarrows — multiple standard-sized units

Ongoing Maintenance Tools

  • Drag mat — smooths cut-outs after raking; can be homemade cheaply
  • Line marker — Network Sports equipment with white emulsion paint, watered down
  • Battery strimmer — maintains grass edges near fences and cut-outs
  • Nail drag — loosens soil before/after games; homemade as UK suppliers are scarce
  • Infield screening rake — moves and smooths dirt efficiently between games
  • Dirt repair tools — trowels, chisels, tampers, buckets
  • Batter's box template — made from plumbing pipe and elbow connectors

Maintenance tools in action

Homemade nail drag Diamond overview Diamond overview Diamond overview
6

After Season One (2023)

What Worked Well

  • Tarpaulins: heavy-duty tent-peg tarps over the mound and home plate were "a wise choice." Retained moisture, prevented displacement, controlled weeds, and restricted access.
  • The keyhole strip (dirt from mound to home plate) prevented teardrop shaping and doubled as a coaching area for juniors.
  • Scoreboard — well received by all participants.
  • Ground levelling proved effective for problem areas.

Field Maintenance Realities

  • Nail drag needed before and after every game — always drag from outside inward to prevent centre hollows
  • Mound required repairs approximately every two game days (~1 hour per repair, using clay bricks)
  • Home plate needed two top-ups of ~8 wheelbarrows each during the season
  • Boundary grass required more strimmer work than anticipated
  • Periodic weed-control sprays necessary on dirt sections

What We'd Do Differently

The quarter-circle design at first base caused grass damage from runner lead-off traffic patterns. A modified shape would reduce wear.

Other Lessons

  • A covered storage solution for bulk dirt delivery is essential
  • Temporary duckboards needed at gate areas during wet weather
  • Mound rubber can be rotated seasonally to even out wear
Recommended resource: groundskeeperu.com — invaluable maintenance guides created by Beacon Athletics.

Season one photos

Scoreboard Tarp keeping moisture in the mound First base grass damage Dirt storage solution
7

After Season Two (2024)

Pre-Season Work (February)

A sunken area between first and second base was addressed by adding two tonnes of topsoil, manually levelling with a line marker, and seeding. The mound rubber was rotated to ensure even wear.

Outfield Markers

"A recommendation to other clubs: set markers in the outfield as a guide. We used eight blue sports 'carrots' at 300 feet from home plate and found this worked well."

Batting Cages — Major 2024 Project

Two side-by-side batting cages were constructed: 72 feet long, 14 feet wide and high. Cricket netting fixed with postcrete (avoiding concrete slabs to minimise cost and planning restrictions). Rubber grass mats with external cricket matting installed inside.

Season Maintenance Summary

  • 5 dig-out repairs on the mound
  • 3 landing area repairs
  • 2 batter/catcher box repairs (16 clay bricks used)
  • 48 wheelbarrows of dirt distributed across repairs
  • Estimated 3–4 tonnes of dirt used across the full season
  • ~5–6 hours of strimming total

Drainage Progress

The rugby club using part of the outfield during winter contributed to solving a long-standing drainage problem. Jetting drains at the upper field significantly improved conditions — enough to host a university game in mid-November.

Looking Ahead (2025+)

  • Mower-trimmed marker replacement
  • Improved pitching mound construction using clay-rich spoil
  • Raised netting edges to prevent grass encroachment into cages
  • Possible enclosed dugouts with a roof…

Season two photos

New batting cages Batting cage mats Seeding work pre-season Extra topsoil added Edging work Raised edge detail Clay cracks in dry weather Keyhole strip Repaired keyhole Dirt storage area Storage framework Completed dirt storage
Kit & Gear

Equipment Guide

Not sure what to buy? Here's what you need for training and matches — and what the club provides.

What the Club Provides

All equipment is available at sessions — you do not need to buy anything to start playing.

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Batting Gloves & Helmets
Multiple sizes available at all sessions
Bats & Balls
All sizes for juniors and adults
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Fielding Gloves
Club gloves available — own glove recommended once you join
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Club Cap & T-Shirt
Included with full junior or adult membership

Glove Sizing Guide

Once you're a regular, your own fielding glove makes a big difference. Here's how to choose the right size and type.

Position Glove Size Recommended Type Notes
Infielder (2B, SS, 3B) 11″ – 11.75″ Shallow pocket, open web Smaller glove for quick transfers
First Baseman 12″ – 13″ First base mitt (no fingers) Deep scoop pocket for scooping low throws
Outfielder 12.5″ – 13″ Deep pocket, closed web Larger glove for tracking fly balls
Pitcher 11.5″ – 12″ Closed web (hides grip) Web conceals pitching grip from batter
Catcher 32.5″ – 34″ Catcher's mitt Heavily padded, no individual fingers
Juniors (U11) 9″ – 10.5″ Youth glove, any position Lighter weight, smaller hand opening

Tip: Break in your new glove with baseball-specific glove oil and repeated use. A properly broken-in glove forms to your hand and makes a huge difference in the field.

Player Development

Baseball Plays & Cut-Offs

Governance

Club Policies & Documents

All members and players are expected to have read and agreed to these policies on registration.

Safeguarding & Registration

All players and junior participants are required to agree to the club's Code of Conduct and Child Protection Policy as part of their registration. If you have any safeguarding concerns, contact our DBS officer James Muller at info@guildfordbaseball.co.uk.