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100mm Blocks

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Browse our wide selection of trade quality 100mm concrete blocks, ideal for a variety of building construction projects. These versatile blocks are perfect for both domestic and commercial applications, offering strength and durability where it matters most. Whether you’re working on internal walls, external structures, or foundations, our range includes medium dense blocks for general use and high density blocks for more demanding, structural work.

Looking for something larger? Explore our full range of bricks and blocks, including 140mm blocks and 215mm blocks, all manufactured to meet modern building standards.

Don’t forget, when you sign up for a Travis Perkins trade account, you gain access to exclusive trade only prices and a range of helpful benefits tailored to professionals.

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Solid Dense 7.3N Concrete Block Grey 100mm
4.8 (111 reviews)
Product Code: 700064
Solid Dense 7.3N Concrete Block Grey 100mm
Retail price

£2.78

each
£2.32 ex. vat
Trade price
£2.41
Inc. VAT
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H+H Celcon Standard Aerated Concrete Block Grey 3.6N 440mm x 100mm x 215mm
4.7 (46 reviews)
Product Code: 700055
H+H Celcon Standard Aerated Concrete Block Grey 3.6N 440mm x 100mm x 215mm
Retail price

£3.00

each
£2.50 ex. vat
Trade price
£2.84
Inc. VAT
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Solid Medium Density 7.3N Concrete Block 100mm
4.9 (8 reviews)
Product Code: 922113
Solid Medium Density 7.3N Concrete Block 100mm
Retail price

£3.54

each
£2.95 ex. vat
Trade price
£3.04
Inc. VAT
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Fibolite Ultra Lightweight Solid Concrete Block 3.6N 100mm
Product Code: 799214
Fibolite Ultra Lightweight Solid Concrete Block 3.6N 100mm
Retail price

£3.71

each
£3.09 ex. vat
Trade price
£3.53
Inc. VAT
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H+H Celcon Hi-7 Aerated Concrete Block 7.3N 100mm
5 (2 reviews)
Product Code: 837344
H+H Celcon Hi-7 Aerated Concrete Block 7.3N 100mm
Retail price

£5.38

each
£4.48 ex. vat
Trade price
£5.11
Inc. VAT
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H+H Celcon Brick Standard Coursing Unit 65mm
Product Code: 753178
H+H Celcon Brick Standard Coursing Unit 65mm
Retail price

£1.51

each
£1.26 ex. vat
Trade price
£1.32
Inc. VAT
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H+H Celcon Standard Aerated Concrete Block 3.6N 75mm
4.7 (3 reviews)
Product Code: 700054
H+H Celcon Standard Aerated Concrete Block 3.6N 75mm
Retail price

£4.31

each
£3.59 ex. vat
Trade price
£4.10
Inc. VAT
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Coursing Slips 390mm COS 002
Product Code: 763510
Coursing Slips 390mm COS 002
Retail price

£4.78

each
£3.98 ex. vat
Trade price
£4.13
Inc. VAT
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Solid Medium Density 3.6N Concrete Block 100mm
5 (2 reviews)
Product Code: 869425
Solid Medium Density 3.6N Concrete Block 100mm
Retail price

£4.00

each
£3.33 ex. vat
Trade price
£3.79
Inc. VAT
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H+H Celcon Solar Aerated Concrete Block 2.9N 100mm Pack of 120
Product Code: 701733
H+H Celcon Solar Aerated Concrete Block 2.9N 100mm Pack of 120
Retail price

£413.86

per pack
£344.88 ex. vat
£3.45per item
Trade price
£391.68
Inc. VAT
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Solid Ultra Low Density Concrete Block 3.6N 100mm
4 (3 reviews)
Product Code: 334688
Solid Ultra Low Density Concrete Block 3.6N 100mm
Retail price

£4.61

each
£3.84 ex. vat
Trade price
£4.37
Inc. VAT
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Showing 1—11 items of 11

Learn more about 100mm blocks

 

Our 100mm blocks are ideal for a range of construction projects, offering strength, durability, and reliability. These concrete blocks are perfect for use in load-bearing walls and general blockwork applications. Whether you are constructing a foundation or building non-loadbearing walls, our 100mm blocks are designed to meet the high standards required for both residential and commercial projects. 

 

Typical uses

 

  • Constructing load-bearing walls for residential and commercial buildings

  • Building non-loadbearing partitions and internal walls

  • Creating foundations and structural elements for extensions and new builds

  • Supporting wall structures in both interior and exterior applications

  • Laying blocks for retaining walls and other structural features

 

How to choose the right 100mm blocks

 

  • Determine whether the blocks are for load-bearing or non-loadbearing applications

  • Check for appropriate block strength to ensure it meets your building regulations

  • Choose the correct block size for your project requirements and wall thickness

  • Select blocks based on their suitability for your specific site conditions, such as moisture resistance

  • Review the surface finish for aesthetic purposes, particularly for exposed walls

  • Ensure compatibility with other building materials, such as mortar and reinforcement

 

Before you order

 

  • Confirm the number of blocks required based on your project dimensions. To help estimate the quantity you need for a project, use our Brick & Block calculator.

  • Review product specifications to ensure you’re choosing the right block type for the task

  • Ensure you have the necessary tools and materials for installation, such as mortar and reinforcement

  • Check product availability and delivery lead times to meet your project schedule

  • Consider additional items like foundation blocks for complete foundation solutions

 

Explore our range of 100mm blocks

Browse our full selection of 100mm blocks, ideal for various construction tasks. Need a different size? Explore our 140mm blocks and 215mm blocks for different applications. If you’re looking for additional building materials, our paving and walling range offers everything you need to complement your blockwork. For easy and convenient ordering, explore our Click & Collect and delivery options to have your materials delivered or ready for collection at your local branch.

FAQs about 100mm blocks