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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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4.8 (110 reviews)
Solid Dense 7.3N Concrete Block Grey 100mm
Retail price
£2.65
each£2.21 ex. vat
Trade price
£2.30
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4.7 (46 reviews)
H+H Celcon Standard Aerated Concrete Block Grey 3.6N 440mm x 100mm x 215mm
Retail price
£2.76
each£2.30 ex. vat
Trade price
£2.62
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4.9 (8 reviews)
Solid Medium Density 7.3N Concrete Block 100mm
Retail price
£3.37
each£2.81 ex. vat
Trade price
£2.89
Inc. VAT
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Fibolite Ultra Lightweight Solid Concrete Block 3.6N 100mm
Retail price
£3.53
each£2.94 ex. vat
Trade price
£3.36
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5 (2 reviews)
H+H Celcon Hi-7 Aerated Concrete Block 7.3N 100mm
Retail price
£4.94
each£4.12 ex. vat
Trade price
£4.70
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H+H Celcon Brick Standard Coursing Unit 65mm
Retail price
£1.39
each£1.16 ex. vat
Trade price
£1.21
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4.7 (3 reviews)
H+H Celcon Standard Aerated Concrete Block 3.6N 75mm
Retail price
£3.96
each£3.30 ex. vat
Trade price
£3.77
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H+H Celcon Solar Aerated Concrete Block 2.9N 100mm Pack of 120
Retail price
£380.74
per pack£317.28 ex. vat
£3.17per item
Trade price
£360.00
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5 (2 reviews)
Solid Medium Density 3.6N Concrete Block 100mm
Retail price
£3.80
each£3.17 ex. vat
Trade price
£3.61
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Coursing Slips 390mm COS 002
Retail price
£4.61
each£3.84 ex. vat
Trade price
£3.95
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4 (3 reviews)
Solid Ultra Low Density Concrete Block 3.6N 100mm
Retail price
£4.39
each£3.66 ex. vat
Trade price
£4.16
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Showing 1—11 items of 11
H+H Celcon Standard Foundation Aerated Concrete Block 440 x 215 x 355mm 3.6N
Order in singles. See Tech Spec for pack quantity. Celcon Standard grade is extremely versatile and can be used below DPC as infill for Beam and Block flooring systems, as well as above the ground in walling applications
£14.06 each (Inc. VAT)
Sovereign 30616226 Fleeced Overseal Tape 10M
Sovereign Fleeced Overseal Tape is a synthetic butyl/rubber based preformed strip sealant laminated with a non woven polyester fleece. It's primarily used for creating a joint overseal where SovDrain Cavity Drain Membranes are used.
£56.33 each (Inc. VAT)
Safeguard Drybase Fleece Overseal Tape 100MM X 20M
Fleece backed 100 mm waterproof butyl tape gives a well-bonded seal to the mesh face of Drybase. Plaster Membrane. The fleece backing to this tape also accepts a plaster coat finish as well as plaster adhesive where a dot and dab plasterboard system is preferred.
£40.24 each (Inc. VAT)
Bostik 30621748 Block B902 Terra Express 15kg
Bostik BLOCK C902 (previously Sovereign Hey’di Powder X) is a rapid-setting plugging compound with almost instant curing. It is used to stop water ingress through concrete and masonry, prior to tanking with the Sovereign Hey’di K11 Tanking System. Bostik BLOCK C902 can be applied as a dry powder or mixed with water into a wet paste and used as a plug. It sets in seconds of contact with water, forming a waterproof plug preventing water ingress.
£102.42 each (Inc. VAT)