Precast Concrete Padstone - 215 x 140 x 440mm - 5 Pack
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B&Q - 215mm X 140mm X 440mm Concrete Padstone Pad07 (5/pack)
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£216.60
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HomebasePAD07 Precast Concrete Padstone 215 x 140 x 440mm 5 Pack
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Product Information
Full details
The B&Q Precast Concrete Padstone (215 x 140 x 440mm) is an essential structural component for contractors and serious DIY enthusiasts looking to ensure proper load distribution under heavy lintels and steel beams. By providing a solid bearing surface, it effectively protects masonry from stress concentrations and potential cracking; however, due to its significant weight, proper lifting techniques and specialized installation equipment are required to ensure safety during handling.
All features
| Model Part Number | PAD07 |
|---|---|
| Brand | B&Q |
Extended Product Information
FAQs
Can these padstones be cut to size?
While it is technically possible to cut them with a diamond blade, it is generally discouraged as it may compromise the structural integrity and load-bearing capacity of the unit.
Do I need to use a DPC under the padstone?
Yes, depending on your building location and design, you should follow standard site practices regarding damp-proof courses to prevent moisture transfer.
What is the weight of one unit?
Each unit is quite heavy due to the high-density concrete; it is recommended to use at least two people or mechanical assistance when lifting.
Are these suitable for external wall use?
Yes, precast concrete is suitable for external use, provided it is installed correctly within the wall structure.
Does the 5-pack come with installation mortar?
No, the pack includes the padstones only; you will need to source appropriate structural mortar separately.
Can I use these for timber joists?
Yes, they are excellent for supporting heavy timber or glulam beams to prevent the joist ends from crushing the brickwork.
Troubleshooting
Difficulty achieving a level base.
Use a layer of high-strength sand/cement mortar to bed the padstone, ensuring it is level across both axes with a spirit level before the mortar sets.
Beam not sitting centrally.
Carefully reposition the beam or utilize shims if permitted by your structural engineer to ensure the weight is distributed evenly across the center of the padstone.
Hairline cracks appearing in adjacent mortar.
Consult a structural engineer to ensure the load calculation is correct; ensure the padstone is fully bedded with no voids underneath.
Pros and Cons
Pros
- Significantly increases the load-bearing capacity of masonry walls.
- Essential for preventing damage from point loads like RSJs.
- High-quality precast concrete offers consistent structural performance.
- Compatible with a wide range of steel and timber beam types.
- Convenient 5-pack format suitable for medium-scale renovation projects.
Cons
- Individual units are heavy and require careful handling.
- Requires precise placement to ensure load is centered correctly.
- Non-adjustable size means it may require mortar adjustments for fit.
- Not intended for non-load bearing applications where weight is unnecessary.
Setup, Compatibility & Care
Installation requires a level bed of mortar to ensure the padstone is perfectly horizontal before any load is applied. Always verify that the masonry beneath the padstone is sound and capable of supporting the anticipated load. When aligning with steel, ensure the beam sits centrally on the padstone to prevent eccentric loading. For maintenance, simply inspect the surrounding mortar joints periodically to ensure no hairline cracks have formed due to structural settlement. If working in exposed areas, ensure that the concrete is protected according to local building regulations and that standard damp-proof course (DPC) practices are maintained where the padstone meets other building materials.