Specify long jump pit covers around the sand pit, the surrounding track and the people who uncover it every day. DERFLEX supports PVC coated fabric and custom tarp programs for athletics facilities, sports contractors, distributors and OEM buyers.
Start with solid PVC or permeable mesh, then define finished size, overlap, reinforced hems and the securing arrangement. Send a dimensioned pit sketch and site photos to discuss a cover construction, including any weighted-edge requirement.
A long jump pit cover is a removable sheet used over a closed athletics sand pit to reduce leaves, litter and other debris entering between sessions. A solid cover can also limit rain passing through the fabric; a mesh cover allows water through.
The specification becomes useful when it explains how the cover meets the rim, how each edge is retained and how staff remove it without dragging hardware across the track. A generic rectangle and a fabric weight leave these questions open.
Decide whether rain should be shed or allowed through, measure the intended finished footprint, and define the perimeter treatment for each side. Then review material strength, panel weight and removal procedure together.
Choose solid PVC for a rain barrier through the sheet. Choose mesh for a permeable debris cover over a suitably drained pit. Neither option replaces pit drainage or routine sand maintenance.
| Site priority | Solid PVC coated polyester | PVC coated polyester mesh |
|---|---|---|
| Rain management | Limits rain passing through intact fabric. Specify welded seams and manage water collecting on top. | Allows rain through. Confirm the pit's drainage and the selected mesh opening. |
| Leaves and debris | A continuous sheet helps separate the sand from surface debris while the perimeter stays closed. | Retains debris larger than the openings. Fine dust and small particles can pass through. |
| Daily opening | Remove pooled water before lifting. Include wet handling conditions in the operating plan. | Permeability reduces water held on the surface, but leaves can block openings. |
| Wind exposure | Review edge lift and the complete securing system for the cover area. | Air permeability may reduce pressure differences, but does not establish safe ballast or a wind rating. |
| Buyer acceptance | Confirm coating, fabric weight, seam construction and any agreed water-barrier check. | Confirm opening size, retained debris, edge finish and joining method on a sample. |
Review the PVC tarpaulin material range when a solid, weldable cover is required.
Explore PVC mesh tarp options when drainage through the cover is part of the brief. Confirm a pit-appropriate mesh rather than choosing by color alone.
Record the sand opening and outside rim separately. Finished cover dimensions must account for the surface where the perimeter will actually rest.
Record length and width at several points, both diagonals, rim height and any corners that are not square.
Photograph the runway approach, drain channels, kerbs, existing sockets and nearby obstructions. Mark the space available beyond each edge.
Show the overlap on each side and the intended location of pockets or fixings. A nominal sand opening is not a finished cover size.
State finished dimensions and tolerance on the drawing. Hem folds, welded joints and pocket development are separate manufacturing allowances.
For a rectangular pit with equal overlap on all four sides. Values below are an illustrative calculation, not a standard pit size or material recommendation.
Length = rim length + 2 × overlap; width = rim width + 2 × overlap. Fabric mass = finished area × g/m² ÷ 1,000. Actual mass adds seam overlaps, hems, pockets, reinforcement, ballast and hardware. This tool does not select ballast or calculate wind resistance.
An exposed outer edge, a runway-facing edge and a storage-fold line perform different jobs. A marked drawing helps prevent a convenient detail on one side becoming an obstruction on another.
A contained ballast pocket can help seat the edge without placing loose weights individually. Confirm pocket position, continuity, corner transitions and whether ballast is removable.
Ballast type and mass per metre, active weighted length, pocket closure and corrosion protection. Ask whether ballast is supplied with the cover or sourced locally.
Where an approved attachment system exists, agree hem reinforcement, hardware positions and the pull direction. A grommet layout should follow the surveyed fixing points.
Hole or ring dimensions, spacing, backing patches and connector compatibility. Keep exposed fittings and loose lines out of routes used by athletes and maintenance staff.
Show where the cover meets the runway and where its edge will rest while the pit is closed. Check available clearance before specifying a bulky pocket or projecting fitting.
Edge profile, overlap, identification and removal order. Remove the cover and all loose components before the pit is reopened for athletics use.
See the weighted-edge tarp specification guide for ballast layout and handling considerations. A weighted edge is not a wind-performance guarantee.
Review reinforced tarp hems and grommet options if your approved site fixing system uses eyelets.
Use this schedule for a single-facility replacement, a school district tender or a distributor's repeat cover program. Final specifications depend on the agreed drawing and sample.
| Specification item | What the buyer should define | What to confirm at approval |
|---|---|---|
| Supply format | Finished cover, cut panels or roll material for local fabrication | Exactly which fabrication and installation items are included |
| Fabric construction | Solid PVC coated polyester or permeable PVC mesh; exposure and handling frequency | Selected grade, fabric weight, thickness where relevant, color and surface |
| Geometry | Sand opening, outer rim, overlap by side and any irregular corners | Finished dimensions, tolerances, corner shape and orientation marks |
| Joining and seams | Panel layout, fold direction, wet-use requirements | Joining method compatible with the material; seam sample and inspection criteria |
| Perimeter and ballast | Edge-by-edge detail, active weighted length or approved fixing layout | Reinforcement, pocket construction, fittings, supplied ballast and total mass |
| Weather requirements | Sun exposure, local temperatures, drainage and site conditions | Any required test method and documented acceptance values for the chosen grade |
| Branding and packing | Logo artwork, facility identification, quantity and storage preference | Print feasibility, approved proof, folded dimensions, package mass and labels |
| Commercial terms | Order quantity, destination and required delivery date | Price basis, MOQ, sample arrangement and production lead time in the quotation |
No universal GSM, service life, wind rating or installation load is assumed for this product. Ask for evidence tied to the selected fabric and completed construction when a tender requires specific performance.
These are actual DERFLEX site images of tarp materials and manufacturing. They help discuss fabric, edge finish and color; the agreed sample defines your pit-cover construction.
DERFLEX supplies PVC tarpaulin material and custom finished tarp solutions. Buyers can discuss roll goods for their own conversion or a defined finished-cover program.
Use the pit drawing, photographs and rain-management brief to identify material, perimeter and handling questions.
Agree dimensions, edge details, seam layout, included components and any sample or test requirement before bulk production.
Retain the signed drawing revision, material sample, color reference and packing specification for replacements and repeat orders.
This can omit the rim landing area and leave the perimeter unsupported. Show the opening, outer rim and finished cover as separate dimensions.
Permeable mesh admits rain. Choose it for a debris-control strategy that works with the pit's drainage.
GSM says little about the full handling task. Include reinforcement, hardware, ballast and the storage route.
A pocket-only cover and a ballasted cover are different purchases. State supply responsibility, ballast specification and package weight clearly.
A dimensioned drawing and photos are more useful than a nominal size alone. For a replacement, include photographs of the current cover and any recurring edge, seam or handling problem.
Quotation, minimum order quantity, sample availability and lead time are confirmed after the specification is reviewed.
Choose solid PVC when limiting rain entry through the fabric is the priority and surface water can be managed. Choose permeable mesh when rain should pass into a suitably drained pit and debris control is the priority. Mesh does not keep sand dry; a solid cover still needs a runoff and ponding plan.
Record the sand opening and the outside rim dimensions separately, then measure the intended overlap and available landing space on each side. Mark runway-facing edges, corners, drains and existing fixing points. Submit a drawing that identifies finished cover dimensions; the manufacturer should calculate cutting and hem allowances.
A weighted edge can help seat the perimeter, but it does not establish a wind rating or guarantee retention. Cover area, exposure, edge lift, surface conditions and the fastening arrangement must be reviewed for the site. Confirm the required securing method and weather procedure with the facility's responsible person.
A cover can be specified for a shared long jump and triple jump landing pit using its actual dimensions and perimeter conditions. Do not size it from the athletics event name or a standard retail size. Record every runway approach and any edge that needs different treatment.
DERFLEX supplies PVC tarpaulin materials and custom finished tarp solutions. Request roll fabric, cut panels or a finished-cover program as appropriate. A weighted pocket, removable ballast, logo printing or special fittings must be confirmed for the proposed construction before ordering.
Price depends on material, finished area, joining, perimeter construction, ballast supply, accessories, printing, quantity and packing. MOQ and lead time are quoted after the specification is reviewed. State whether ballast is factory fitted, shipped separately or sourced locally so quotations can be compared on the same basis.
Share the dimensions, site photos, material preference and edge requirements. DERFLEX can review the fabric and fabrication brief for your custom long jump pit cover program.