Steel shuttering is the standard choice for house slabs and beams on many Lahore sites. Steel plates hold their shape over many pours, give a smoother underside than worn plywood, and pair with adjustable steel props that are quick to level. You rent them for as long as the slab needs support, then return them.
Types and specifications
| Item | What it is | Used for |
|---|---|---|
| Slab plates / panels | Flat steel sheets on a framed edge, pinned or clipped together | Underside of roof and floor slabs |
| Beam side and bottom plates | Narrow plates for beam sides and soffits | Beams and lintels |
| Column boxes | Steel panels clamped around column steel | Square and rectangular columns |
| Adjustable props | Telescopic steel tubes with a pin and screw for height | Supporting slab and beam formwork |
| Runners / channels | Steel sections laid across props | Spreading load from plates to props |
| Clamps, pins, wedges | Fixing accessories | Joining and locking panels |
Ask the supplier for sizes and height ranges in writing; they vary between suppliers.
What each is used for
- Plates form the flat surface that wet concrete sits on.
- Props carry the full weight of wet concrete, steel and workers until the slab can carry itself.
- Runners spread that load evenly.
- Column boxes give straight, square columns with less plaster later.
Quality checks on delivery
- Count every item against the delivery slip: plates by size, props by height, runners, clamps and pins.
- Check plate faces for rust, dents, holes and concrete crust. Dented plates leave dents in the slab.
- Check edges and frames – bent edges cause gaps that leak slurry.
- Check props – straight tubes, working pin holes, screw threads that turn, base and head plates intact.
- Note damage on the slip before signing, with photos.
- Check matching sizes – mixed plate sizes slow fixing and leave steps in the concrete.
How much you need
There is no reliable published rule of thumb for steel shuttering quantities; the amount depends on slab area, beam layout, storey height and prop spacing. Ask the supplier or shuttering contractor to calculate the item list from your structural drawings, and have your engineer confirm prop spacing and support for heavy beams.
Bulk-renting tips
- Delivery and unloading – confirm who unloads; plates are heavy and edges are sharp.
- Storage on site – stack plates flat on battens, off wet ground, and keep props upright or neatly stacked.
- Oiling – apply release agent before each pour; it protects plates and gives a cleaner finish.
- Cleaning – remove concrete crust after striking; some suppliers charge for dirty returns.
- Invoices and slips – keep the delivery slip, item list and any extra items added later.
- Payment staging – pay deposit and first period on delivery; settle damages and balance at the joint count on return.
- Extensions – agree the daily or monthly extension rate in advance in case curing or weather delays you.
What affects the price
- Number and type of items.
- Rental period and extension charges.
- Condition of stock (newer plates may cost more).
- Transport for delivery and pickup.
- Whether a fixing crew is included.
- Security deposit and damage charges.
Rates are not published consistently; get two or three written quotes using the same item list.
FAQs
Is steel shuttering better than wood? For regular slabs and beams it gives a flatter finish and less wastage. Wood is still useful for odd shapes, edges and small pieces.
When can props be removed? Only when your structural engineer says so. Removing props too early can crack or sag a slab.
Who fixes the shuttering? Either your builder's crew or a crew supplied by the rental company. Confirm which the quote covers.
What if a prop is lost? The supplier usually charges a set amount from the deposit. Agree loss charges per item before delivery.
Can I keep the shuttering between floors? Yes, but you pay rent for the idle time. If there is a long gap, returning and re-renting may cost less.
Sources
- No published rates, quantities or standards are cited on this page; it reflects general site practice. Follow your structural engineer's instructions for prop spacing and striking times.