215mm Hollow Dense Concrete Block 7.3N
High-strength 215mm hollow dense block for heavy-duty walling. 7.3N compressive strength with voids for reinforcement or insulation. Suitable for load-bearing use above and below damp proof course.
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Wed 17 Sep
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- 4hrs
- 55mins
- 33secs
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Split your purchase of £3.50 into 4 with no sign-up fees or late fees. Your purchase will be split into 4 payments, payable every 2 weeks
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Product Overview
High-strength 215mm hollow dense block for heavy-duty walling. 7.3N compressive strength with voids for reinforcement or insulation. Suitable for load-bearing use above and below damp proof course.
Delivery & Returns Information
How Our Delivery Works
We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery Areas & Charges
Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, FK, KW, IV, LA, LD, LL, NP, PA, PH, SA, SY
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.
Standard (Nationwide) Delivery
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Core Products Core
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|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 ex. VAT | £20 ex. VAT |
| Over £300 ex. VAT | FREE |
Core Delivery charges apply only when all products in an order that have equivalents are accepted as such. If even one product cannot be substituted with an equivalent, the entire order will not qualify for Core Delivery charges.
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £100 | £15 ex. VAT |
| Between £100 - £300 ex. VAT | £10 ex. VAT |
| Over £300 ex. VAT | FREE |
| Insulation, Plasterboard and Drylining Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £350 | £35 ex. VAT |
| Over £350 ex. VAT | FREE |
| Screws & Fixings and Adhesives & Sealants | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £50 | £5 ex. VAT |
| Over £50 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £50 ex. VAT |
| Over £400 ex. VAT | £35 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{fitness_center}} Provides exceptional structural strength
- {{volume_off}} Excellent natural sound insulation
- {{local_fire_department}} Inherent non-combustible fire resistance
- {{private_connectivity}} Hollow voids can be reinforced with concrete and rebar
Technical Specification
| Thickness: | 215mm |
|---|---|
| Length: | 440mm |
| Height: | 215mm |
| Sales Unit: | Each |
| Weight: | 27.5kg |
| Compressive Strength: | 7.3N |
Product Overview
215mm hollow dense concrete block with a compressive strength of 7.3N/mm², measuring 440mm x 215mm x 215mm.
Manufactured from a dense aggregate mix with central voids, it combines reliable load-bearing strength with easier handling and reduced dead weight compared to solid units.
The hollow format also allows reinforcement or insulation to be introduced into the cores, making it a versatile option for foundations, external walls, partitions, and structural walls above or below DPC.
Features & Benefits
- 7.3N/mm² compressive strength: Certified load-bearing capacity for residential, commercial, and industrial walls.
- Hollow core design: Reduces block weight for easier handling and installation.
- Dense aggregate composition: Provides long-term durability and resilience against impact and wear.
- Voids for reinforcement or insulation: Allows structural reinforcement or thermal upgrades within the wall.
- High mass per unit: Delivers effective sound insulation for partitions and separating walls.
- Non-combustible (Euroclass A1): Provides inherent fire resistance in line with building regulations.
- Standard size 440mm x 215mm x 215mm: Compatible with UK brick and block modular dimensions.
- BS EN 771-3 compliance: Manufactured to European standards for aggregate concrete masonry units.
Please Note: Orders requiring a pallet will incur a refundable pallet charge of £20 ex VAT per pallet. Our customer service team will confirm if this applies to your order.
Applications
- Can be used with load-bearing walling: Suitable for external and internal structural walls.
- Partition walling: Provides strength and acoustic performance for internal divisions.
- Beam, column, and retaining wall construction: Hollow cores enable reinforcement for added strength.
- Boundary and foundation walls: Versatile option for stable, durable walling solutions.
Installation Guidance
- Mortar bedding: Lay on full mortar beds to ensure load transfer and stability.
- Core reinforcement: Where required, fill voids with concrete or insulation to meet structural or thermal needs.
- Handling and placement: Hollow design makes units lighter than solid blocks but still requires safe manual handling.
Compliance & Performance
- Compressive strength 7.3N/mm²: Provides certified load-bearing performance for structural use.
- BS EN 771-3 compliance: Produced in line with standards covering strength, density, dimensional accuracy, and durability.
