Hollow Block vs Solid Block: Which One Fits Your Wall?

Last updated: 9 Nov 2026 | 130 Views |

Short answer: A hollow block has cavities in the middle, so it is light, quick to lay and uses less mortar, which suits partition walls and ordinary fences. A solid block is dense throughout and almost twice as heavy at the same size, which suits walls that need strength or carry load. Both come in load-bearing and non-load-bearing types under separate Thai Industrial Standards (TIS). The type actually used should be specified by the project designer.

CCP hollow concrete blocks in several sizes

How they differ

Item	Hollow block	Solid block / solid concrete brick
Body	Has cavities	Solid throughout
TIS standard	57 (load-bearing) · 58 (non-load-bearing)	59 (solid concrete brick) · 60 (solid load-bearing block) · 2895 (solid non-load-bearing block)
CCP sizes (cm)	Thickness 7, 9, 14, 19 × 19 × 39	Block 9, 14, 19 × 19 × 39 · brick 7, 8, 9 × 14 × 29
Weight per piece (19×39 cm)	6.8–15.5 kg	14.79–29.49 kg
Pieces per m²	12.5	Block 12.5 · brick 24.65
Strengths	Light, quick to lay, saves mortar	Dense and strong; thermal conductivity test results (TIS 60)
Typical uses	Partition walls, ordinary exterior walls, fences	Walls needing strength or carrying load, exterior walls

CCP hollow blocks

Two types by standard: load-bearing (TIS 57) and non-load-bearing (TIS 58)
Sizes, weights and pieces per pallet

Size (cm)	Weight (kg)	Pieces/m²	Pieces/pallet
7 × 19 × 39	6.8	12.5	192
9 × 19 × 39	8.2	12.5	144
14 × 19 × 39	14	12.5	96
19 × 19 × 39	15.5	12.5	72

Popular for fences because they are light and quick to lay
Green Label: non-load-bearing hollow concrete blocks, general type, 70, 90, 140 and 190 mm
CFP: non-load-bearing hollow concrete blocks 7, 9, 14 and 19 cm carry the Carbon Footprint of Product label from TGO (Thailand Greenhouse Gas Management Organization)
Certified Made in Thailand (MiT)

CCP solid blocks and solid concrete bricks

Type	Standard	Size (cm)	Weight (kg)	Pieces/m²	Pieces/pallet
Solid concrete brick	TIS 59	7 × 14 × 29	6.2	24.65	150
		8 × 14 × 29	7.2	24.65	120
		9 × 14 × 29	8.2	24.65	120
Solid block, load-bearing	TIS 60	9 × 19 × 39	14.79	12.5	72
		14 × 19 × 39	22.24	12.5	48
		19 × 19 × 39	29.49	12.5	36
Solid block, non-load-bearing	TIS 2895	9 / 14 / 19 × 19 × 39	14.79–29.49	12.5	72 / 48 / 36

The load-bearing solid block (TIS 60) has test results for thermal conductivity and thermal resistance
Certified Made in Thailand (MiT) and Green Label (ask our sales team which models and sizes carry the Green Label)

If you need a fire-resistant wall

CCP fireproof concrete blocks

See the Fireproof Block, tested to ASTM E119 and BS 476 with fire resistance of more than 4 hours
Used for fire walls, machine rooms, fire-escape stair walls and shaft walls

4 questions to help you choose

Does the wall carry load? If so, use a load-bearing type (TIS 57 or 60) as specified by the designer
What is it for? Partition walls and ordinary fences usually use hollow blocks; walls that need a dense body usually use solid blocks
Do you need supporting documents? For example TIS, MiT, Green Label or CFP for government or green procurement. Copies are available from our sales team
Do you need a fire wall? If so, see the Fireproof Block

Frequently asked questions

How many blocks per square metre?
For 19 × 39 cm blocks, both hollow and solid, you need 12.5 pieces per square metre. Solid concrete bricks of 14 × 29 cm need 24.65 pieces per square metre.

How much heavier is a solid block than a hollow block?
At 19 × 19 × 39 cm, a hollow block weighs 15.5 kg and a solid block 29.49 kg, almost twice as heavy. Plan labour and transport accordingly.

Which blocks carry the Green Label?
Non-load-bearing hollow concrete blocks, general type, 70, 90, 140 and 190 mm, as well as solid blocks (ask our sales team about models and sizes). Copies of certificates are available from our sales team.

Sizes, documents or quotations: CCP sales, tel. +66 92 224 6640, +66 85 123 8961, +66 81 341 1610, +66 85 123 7254, +66 86 983 8709, +66 61 401 2720, +66 90 090 4926 · LINE @ccp-concrete

Products: Hollow Block · Solid Block and Solid Concrete Brick · Fireproof Block · Standards & Certifications