Grey Blocks & Bricks

Great prices. No hassles.

We are the leading manufacturer & retailer of Grey Blocks

Concrete Grey Blocks are manufactured utilising recycled fly ash to provide a lightweight, high strength product. Concrete Grey Blocks are commonly used for construction on houses, schools, and various commercial projects.

Choosing the right Concrete Grey Block

Before selecting, you should ensure this product meets your projects requirements. Certain Concrete Grey Blocks are lightweight, heavy duty and/or fire rated. Please check the Additional Information. Please consult National Masonry™ if you are unsure on the best Concrete Grey Block for your construction needs.

Which colour

Our blocks come in Natural Grey



Website ImageProduct CodeProduct NameDimensionsWeight per unit (kg)Units per palletFire RatingMPANotes
10.01Standard390x190x9010.066156(ƒ’uc = 15MPa)
10.02Three Quarters290x190x908.1240(ƒ’uc = 15MPa)
10.03Half190x190x905.28360(ƒ’uc = 15MPa)
10.25Corner Return L-Shape390x190x90/19013.16140(ƒ’uc = 15MPa)
10.31Solid390x190x9013.704108(ƒ’uc = 15MPa)
10.71Standard Half Height390x90x904.51300(ƒ’uc = 15MPa)



Website ImageProduct CodeProduct NameDimensionsWeight per unit (kg)Units per palletFire RatingMPANotes
15.01Standard Hollow390x190x14012.4481202 hour insulation FRL(ƒ’uc = 15MPa)
15.02Three Quarter290x190x14010.491602 hour insulation FRL(ƒ’uc = 15MPa)
15.03Half190x190x1406.6982162 hour insulation FRL(ƒ’uc = 15MPa)
15.09Control Joint390x190x14012.41202 hour insulation FRL(ƒ’uc = 15MPa)
15.10Control Joint Half190x190x1407.52402 hour insulation FRL(ƒ’uc = 15MPa)
15.12Lintel390x190x14015.461202 hour insulation FRL(ƒ’uc = 15MPa)
15.20Knockout Bond Beam390x190x14012.411202 hour insulation FRL(ƒ’uc = 15MPa)
15.22Seven Eighths340x190x14011.2761252 hour insulation FRL(ƒ’uc = 15MPa)
15.25Corner Return390x190x140/19013.9961052 hour insulation FRL(ƒ’uc = 15MPa)
15.45Cleanout390x190x1408.11202 hour insulation FRL(ƒ’uc = 15MPa)
50.45Cleanout Biscuit & Spring3.63602 hour insulation FRL(ƒ’uc = 15MPa)
15.48H Block390x190x14013.0761202 hour insulation FRL(ƒ’uc = 15MPa)
15.71Standard Half Height390x90x14052882 hour insulation FRL(ƒ’uc = 15MPa)
15.934Standard 140 High190x140x14011
1082 hour insulation FRL(ƒ’uc = 15MPa)



Website ImageProduct CodeProduct NameDimensionsWeight per unit (kg)Units per palletFire RatingMPANotes
20.01Standard390x190x19014.26108120 minutes(ƒ’uc = 15MPa)
20.02Three Quarters290x190x19010.716120120 minutes(ƒ’uc = 15MPa)
20.03Half190x190x1908.492180120 minutes(ƒ’uc = 15MPa)
20.04Quarter190x190x905.28360120 minutes(ƒ’uc = 15MPa)
20.09Full Control Joint390x190x19014.272120 minutes(ƒ’uc = 15MPa)1 pallet = 72 x 20.09 and 20.10 (Sold in pairs)
20.10Control Joint Half190x190x1908.572120 minutes(ƒ’uc = 15MPa)1 pallet = 72 x 20.09 and 20.10 (Sold in pairs)
20.12Full Lintel390x190x19018.5872120 minutes(ƒ’uc = 15MPa)
20.13Half Lintel190x190x1909.18180120 minutes(ƒ’uc = 15MPa)
20.18Deep Lintel390x190x19014.7190120 minutes(ƒ’uc = 15MPa)
20.20Knockout Bond Beam390x190x19013.98108120 minutes(ƒ’uc = 15MPa)
20.21Knockout Bond Corner390x190x19014.98108120 minutes(ƒ’uc = 15MPa)
20.22Seven Eighths340x190x19013.412108120 minutes(ƒ’uc = 15MPa)
20.25Three Quarter Lintel290x190x19010.57165120 minutes(ƒ’uc = 15MPa)
20.40Half Height Sill190x90x1906.65195120 minutes(ƒ’uc = 15MPa)
20.42Channel390x190x19014.7175120 minutes(ƒ’uc = 15MPa)
20.45Cleanout390x190x19013.3990120 minutes(ƒ’uc = 15MPa)
50.45Biscuit & Spring3.6360120 minutes(ƒ’uc = 15MPa)
20.48H Block390x190x19013.5490120 minutes(ƒ’uc = 15MPa)
20.71Standard Half Height390x90x1907.21180120 minutes(ƒ’uc = 15MPa)
20.748Squint290x190x19012.2890120 minutes(ƒ’uc = 15MPa)
20.925Single Core390x190x19015.4590120 minutes(ƒ’uc = 15MPa)
50.31Capping Tile390x40x1905.5300120 minutes(ƒ’uc = 15MPa)
20.60Bonded PR390x190x39017.960120 minutes(ƒ’uc = 15MPa)



Website ImageProduct CodeProduct NameDimensionsWeight per unit (kg)Units per palletFire RatingMPANotes
30.48H Block390x190x29017.8360120 minutes(ƒ’uc = 15MPa)
30.20Combo STD/KO390x190x29022.3460120 minutes(ƒ’uc = 15MPa)
30.02Three Quarter290x190x29016.5580120 minutes(ƒ’uc = 15MPa)
30.18Deep Lintel190x390x29017.185120 minutes(ƒ’uc = 15MPa)
30.45Cleanout390x190x29014.860120 minutes(ƒ’uc = 15MPa)
50.45Biscuit & Spring4.1120120 minutes(ƒ’uc = 15MPa)
40.925400 Pier Block390x190x39023.954120 minutes(ƒ’uc = 15MPa)



Website ImageProduct CodeProduct NameDimensionsWeight per unit (kg)Units per palletFire RatingMPANotes
12.715STCommons Brick Single 230x76x1103.4500(ƒ’uc > 5MPa)Load Bearing
12.789Speed-E Commons Brick Double 230x162x1106.166250(ƒ’uc > 5MPa)Non Load Bearing

Concrete Grey Blocks Delivery Areas

All our Concrete Grey Blocks and accessories can be picked up or we can deliver to the following areas:

North Queensland

Mackay, Rockhampton, Gladstone, Emerald, Cairns.

Don’t see your location here? Contact us to find a reseller near you.

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Pallet Pickup

We'll come and pickup the pallets. Either call us or use the pickup form.

Contact Us

Need design help, or a quote? Simply give us a call for more information.