2026-10-23T18:23:57

Practical Column, Sloof and Ring Beam for a House: Rebar and Spacing

Practical column, sloof and ring beam are the three elements that tie a one-storey house together. The 2025 Habitable Housing Pocket Book from the Ministry of Housing and Settlement Areas specifies reinforced concrete columns with 4 D10 bars and Ø8 mm stirrups every 15 cm, practical columns at corners or every 3–4 m of wall, and a 15 x 20 cm ring beam. This article summarises those specifications, calculates rebar weight per metre (homeX calculation) and gives an example quantity for a 6 x 6 m house, based on the document we read on 23 October 2026.

Practical column, sloof and ring beam: specifications, rebar weight and example quantities

Element / item	Specification or result	Basis	homeX note	Source
Reinforced concrete column	4 D10; main bar ends bent 40 cm; Ø8 stirrups at 15 cm, stirrup ends bent 135 degrees; 1.5 cm concrete cover	RLH Pocket Book 2025, Column section	Column size is not stated; 15 x 15 cm is only a homeX assumption	Buku Saku Rumah Layak Huni 2025 (pkp.go.id)
Practical column spacing	Required at brick corners, or on walls every 3–4 m (equal to 9–12 m2 of wall); maximum height 4 m	RLH Pocket Book 2025	Wall area as given in the pocket book	Buku Saku Rumah Layak Huni 2025 (pkp.go.id)
Sloof (tie beam at the base)	Sloof 15/20 above the foundation, binding the wall; main bars D10; Ø8 stirrups at 15 cm; stirrup spacing 15–20 cm; Ø10 anchors every 30 cm	RLH Pocket Book 2025, Sloof section	Number of main bars is not stated; the homeX example uses 4	Buku Saku Rumah Layak Huni 2025 (pkp.go.id)
Ring beam	15 x 20 cm (height x width per the pocket book), usually 4 D10 and Ø8 stirrups; bar ends bent 40 cm or 40D; ties columns and walls against seismic/wind load	RLH Pocket Book 2025, Ringbalok section	Reinforcement follows structural calculation for specific buildings	Buku Saku Rumah Layak Huni 2025 (pkp.go.id)
Wall masonry	40 cm anchors every 6 courses of red brick or every 2 courses of lightweight brick; staggered brick bond	RLH Pocket Book 2025, Wall section	See the wall RAB per m2 in the homeX article	Buku Saku Rumah Layak Huni 2025 (pkp.go.id)
D10 rebar weight per metre	0.617 kg per metre; 4 bars = 2.47 kg per metre	Formula 0.00617 x d2 kg/m (steel density 7,850 kg/m3)	Theoretical homeX calculation; the SNI 2052 table nominal weight and the real market bar weight can differ, see the rebar checking article	Buku Saku Rumah Layak Huni 2025 (pkp.go.id)
Ø8 stirrups at 15 cm (1.5 cm cover)	15 x 15 column: one stirrup about 57.6 cm, 1.52 kg of steel per metre of column. 15 x 20 beam: about 67.6 cm, 1.78 kg per metre	homeX calculation: inner perimeter + two 135-degree hooks of 6d; Ø8 = 0.395 kg/m	Excludes lap splices and cutting waste; add about 10%	Buku Saku Rumah Layak Huni 2025 (pkp.go.id)
Rebar per metre: 15 x 15 column and 15 x 20 beam	Column 4.0 kg per metre (4 D10 + Ø8 stirrups); sloof or ring beam 4.25 kg per metre	homeX calculation from the rows above	Concrete: column 0.0225 m3 per metre; 15 x 20 beam = 0.03 m3 per metre	Buku Saku Rumah Layak Huni 2025 (pkp.go.id)
Example: 6 x 6 m house (24 m perimeter, 3 m high)	8 columns (every 3 m) = 24 m of column: 96 kg of steel. Sloof 24 m: 102 kg. Ring beam 24 m: 102 kg. Total about 300 kg of steel and 1.98 m3 of concrete	homeX calculation; no internal partition walls, doors or windows	Multiply the weight by the price per kg from the homeX rebar price article	Buku Saku Rumah Layak Huni 2025 (pkp.go.id)

Source: Habitable Housing Pocket Book 2025, Directorate of Housing and Settlement Technical Development, Ministry of Housing (official PDF on pkp.go.id), Foundation, Sloof, Wall, Column and Ring Beam sections, read on 23 October 2026. Data gaps: the pocket book gives no column size, number of sloof bars or concrete grade; the specifications are for simple habitable houses and do not replace structural calculation or SNI 2847; we have not compared them with other earthquake-resistant housing guides that may specify different reinforcement. Rebar weights are theoretical homeX calculations.

Practical column, main column, sloof and ring beam compared

According to the pocket book, a column carries loads from the beam and roof to the sloof or foundation, the sloof passes loads to the foundation and binds the wall to prevent cracks, and the ring beam ties columns and walls at the top against seismic or wind loads. Practical columns split a brick wall into small panels.

Check the rebar before buying for light structure

Weight per metre only holds if the diameter is really 10 mm and 8 mm. Under-size bars are lighter; check with a scale and calipers as in the homeX SNI rebar-check article, then compare per-bar prices in the rebar price article. For wiremesh and walls, see the related articles below.

Buyer tips

Place practical columns at every corner and every 3–4 m of wall.
Bend stirrup ends 135 degrees and keep 1.5 cm concrete cover.
Tie the sloof to the foundation with Ø10 anchors every 30 cm.
Ask for structural drawings for a two-storey house or soft soil; do not rely on the pocket book alone.

Request a practical column, sloof and ring beam quote for your project

homeX can compare several brands at once and prepare a written quote for projects, renovations or shop stock. Send your needs (brand, size, quantity, location) via WhatsApp +62 821 1818 998, or visit the homeX showroom: Priskilla Tower, 6th floor, Jl. Atang Sanjaya No.21, Benda, Kota Tangerang, Banten 15125. Visit the homeX Showroom.

Disclaimer: prices change without notice and differ by store, city, pack size, grade and promotion. Data as of 23 October 2026; always confirm with the seller before buying.

FAQ

What is the correct practical column spacing? RLH Pocket Book 2025: at brick corners or every 3–4 m of wall (equal to 9–12 m2), maximum height 4 m.

What reinforcement for a one-storey house practical column? Per the pocket book: 4 D10 with Ø8 stirrups at 15 cm. The column size is not stated; structural drawings are needed for special cases.

How much rebar for the sloof and ring beam of a 6 x 6 m house? homeX calculation assuming 4 D10 and Ø8 stirrups at 15 cm: about 102 kg for 24 m of sloof and 102 kg for 24 m of ring beam, excluding laps.