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Flat Stone Cover Moulds

Flat Stone Drainage Cover Moulds

Flat stone, notched and handle concrete drainage cover moulds for landscape drainage, sidewalks, plazas and ditch lines. Flat-top covers sit flush with paving; notched covers seat into the channel shoulder; handle covers lift off for maintenance access. 21 catalogue sizes from 34×40×5cm to 78×40×6cm.

21 catalogue sizesFlat / notched / handle typesOEM notch & grip layoutFactory-direct supply
Notched drainage cover mould 47×40×6cm

Flat Stone Drainage Cover Moulds for drainage and landscape projects

Flat stone, notched and handle concrete drainage cover moulds for landscape drainage, sidewalks, plazas and ditch lines. Flat-top covers sit flush with paving; notched covers seat into the channel shoulder; handle covers lift off for maintenance access. 21 catalogue sizes from 34×40×5cm to 78×40×6cm.

ApplicationsModern landscape drainage, minimalist sidewalks, plazas, contemporary parks and commercial areas
Pattern optionsPlain flat stone, textured flat stone, bevelled edge and custom dimensions
Cross-sell fitMatches modern paver, kerbstone and drainage channel projects
Buyer supportFull-card product images, drawing review, mixed-SKU packing and WhatsApp discussion

Representative Flat Stone & Notched Cover Moulds

21 qualified product examples across 4 groups — flat-top smooth covers, single-notch and double-notch seated covers, and handle (recessed-grip) access covers. More sizes and OEM notch/grip layouts can be quoted from drawings or sample photos.

Single-Notch Cover Moulds (seat into channel shoulder)

Double-Notch Cover Moulds (both ends seated)

Handle (Recessed-Grip) Cover Moulds (lift-off access)

Flat Stone and Notched Cover Mould Buyer Guide

Flat-top covers and notched-seat covers for ditch lines, road shoulders and landscape drainage.

Four cover families on this page

  • Flat stone covers: a plain smooth top face, chosen where the cover should disappear into the paving rather than add texture. From 34×40×5cm walkway covers to 50×50×10cm heavy squares.
  • Single-notch covers: a recessed shoulder on one end so the slab drops into the channel edge and sits flush — the 40cm-width series from 40×27×6 up to 47×40×6, plus the wide 70×40×6 span.
  • Double-notch covers: shoulders on both ends for long spans that seat on two channel edges, such as 78×40×6cm.
  • Handle (grip) covers: a shaped recess in the top face as a hand grip (60×40×8 and 64×40×8cm) for covers lifted regularly for maintenance.
  • Size range: 34×40×5cm to 78×40×6cm; 40cm width is the most repeated ditch-line width.

Why the notch matters for pricing

A notch changes the mould, not just the concrete. The notch must have draft on every face or the cast slab locks in and the corner chips on release. Because of that, a notched version of the same nominal cover size is a different mould, not an option on an existing one.

  • Confirm notch dimensions as width × depth, e.g. 15×1.5cm or 25×1.5cm, and say how many ends are notched.
  • For handle covers, the grip recess (e.g. 17×2.5cm) needs its own draft so the slab releases cleanly.
  • State whether the top face is smooth, or needs a light broom or anti-slip finish.
  • For ditch lines, order the U-channel / base slab and the cover as a matched pair so the seat lines up — mismatched mould sets are the most common cause of covers that rock or will not seat.
Buyer needRecommended mould directionQuote details to prepare
Smooth cover flush with pavingFlat stone cover mouldFinished length × width × thickness, surface finish
Cover that seats into a ditch shoulderNotched cover mouldNotch width × depth, number of notched ends
Long span over a wide channelDouble-notched cover mould, 78×40×6cm classClear span, load case, reinforcement
Cover lifted for regular maintenance accessHandle (recessed-grip) cover mould, 60–64×40×8cmGrip recess size, lifting frequency, thickness
Driveway or vehicle edge load8–10cm thick cover + cast-in steel mesh/rebarLoad case (pedestrian / light vehicle), slab thickness

FAQ

Are flat stone drainage cover moulds only decorative?

No. They are functional concrete drainage covers with a flat, smooth top. The cover carries pedestrian or light-vehicle load and can be cast flush with surrounding paving for a clean finish.

What is the difference between a flat cover and a notched cover?

A flat cover rests flat on the channel or frame. A notched cover has a recessed shoulder (for example 15×1.5cm or 25×1.5cm) that seats onto the ditch edge or frame lip, so it cannot slide sideways and stays flush. Double-notch covers (78×40×6cm class) seat on both ends for wide spans.

How do I specify the notch size correctly?

Give the notch as width × depth in cm, and tell us how many ends are notched (one or both). The notch must match your channel shoulder or frame lip — if it is too wide the cover rocks, too narrow and it will not seat. Send a photo of the channel edge if you are unsure.

What is a handle (recessed-grip) cover mould?

It has a shaped recess in the top face (such as 17×2.5cm) that acts as a hand grip, so maintenance crews can lift the cover without a separate hook. Sizes 60×40×8 and 64×40×8cm are typical for access points that need frequent opening.

Does thickness matter for drainage covers?

Yes — thickness is driven by load, not by the channel width. 5–6cm covers suit footpaths and landscape ditches; 8–10cm covers suit driveways, plaza edges and maintenance-access lines. The cover also needs steel mesh or rebar inside for vehicle loads; the mould forms the concrete shape but reinforcement is placed during casting.

Should I order the channel/base slab and cover as a matched pair?

For ditch lines, yes. The cover seat and the channel shoulder have to line up, so order the U-channel or base-slab mould and the cover mould together. Buying them separately from different mould sets is the most common cause of covers that do not seat.

Can you customize cover size, notch or grip layout?

Yes. Send the finished cover length × width × thickness, the notch or grip drawing, load requirement and a sample photo. We review demoulding (draft angle) feasibility before cutting the mould.

Which buyers use these moulds?

Precast factories, landscape and municipal contractors, drainage-channel suppliers and ditch-line projects that need concrete cover slabs with a finished top surface — from 34×40cm walkway covers up to 78×40cm double-notch spans.

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