Concrete Column Formwork Blocks - Leier

Short description

Hollow concrete formwork blocks for columns, in 25 and 30 cm. Dry-stacked, reinforced and filled with concrete.

Full description

The column version of the Leier formwork block: a closed square cavity instead of the open channel of a wall block. Stacked dry around the reinforcement cage and filled with concrete, it forms a semi-monolithic reinforced column — the blocks are the permanent shell, the poured core carries the load.

Used for fence posts, gate piers, porch columns and the intermediate supports of a boundary wall — typically together with the wall formwork blocks, which run between the columns. The block surface keys well to render, so a finished column can be plastered or clad without further preparation.

Key benefits

• Forms a reinforced concrete column without timber formwork
• Closed square cavity for the reinforcement cage
• Laid dry, without mortar
• Two sizes: 25 and 30 cm
• 4.3 pieces per linear metre of column
• Surface keys well to render and cladding

Technical specifications

• Product type: concrete column formwork block
• Brand: Leier
• Material: vibro-pressed concrete
• Sizes (L x W x H): 250 x 250 x 230 mm, 300 x 300 x 230 mm
• Weight per piece: 12.8 kg (25 cm), 16.2 kg (30 cm)
• Coverage: 4.3 pieces per linear metre
• Pieces per pallet: 80 (25 cm), 60 (30 cm)
• Laying: dry stacked, filled with concrete
• Use: fence posts, gate piers, porch columns
• Sold by: piece
• Delivery: made to order, subject to supplier stock

Recommendation

Set the reinforcement cage into the footing before stacking the first block, and check it is plumb — a column cage that leans cannot be corrected once the blocks are on. Fill in lifts of two or three courses rather than in one pour. If the column carries a gate or a fence panel, the fixings can be set after the core has hardened.