Structural Steel, Concrete Works, and Site Materials for Projects in Kuta Mandalika

For projects in Kuta Mandalika, construction quality depends on disciplined specification, verified suppliers, and basic on‑site testing. The overview below uses representative items and indicative 2025 prices from our internal lists. Figures are for planning and should be revalidated before purchase orders due to island logistics and supplier variability.

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Reinforcement, Light Steel, and Fasteners

Reinforcing steel is the backbone of structural reliability. Bars and grades must follow drawings and be supported by mill certificates.

• Besi Beton Ulir (deformed rebar) — Rp 17,255 per kg
• Besi Beton Polos (plain rebar) — Rp 16,217 per kg
• Besi beton Ø12 mm (piece reference) — Rp 166,914 per pcs
• Besi 12 mm (length reference) — Rp 210,163 per meter

Light steel members are common for roof framing and secondary structures. Thickness and coating weight affect service life in coastal air.

• Channel C 75–75 Galvalume — Rp 104,292 per bar
• Channel C 75–80 Galvalume — Rp 166,868 per bar
• Roof Batten (Reng 0.40 BMT / 0.45 TCT) — Rp 45,629 per pcs

Fasteners must be sized and coated correctly to keep connections secure.

• Baut Kuda‑kuda Baja Ø17 mm (25 cm) — Rp 23,467 per pcs
• Baut Kuda‑kuda Baja Ø17 mm (30 cm) — Rp 52,146 per pcs

SDS screws (pack references) — Rp 229–652 per pcs (as listed)*

• Spandek bolt (box @300 pcs) — Rp 222,395 per box

Execution notes:

Verify diameters and lengths on delivery; store steel off the ground and under cover. Perform random torque checks on truss bolts and document coating classes for channels and battens.

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Concrete, Aggregates, and Foundation Stone

Concrete strength depends on clean aggregates, proper grading, and water control during mixing.

• Ready Mix Concrete — Rp 1,232,435 per m³
• Abu Batu (Stone Ash) — Rp 648,650 per m³
• Agregat Halus (Fine Aggregate sand) — Rp 250,000 per m³
• Agregat Kasar (Coarse Aggregate gravel) — Rp 250,000 per m³
• Batu Belah / Pondasi (split stone for foundations) — Rp 259,460 per m³

In practice:

Conduct slump tests for each pour and take cylinder/cube samples where the schedule allows. Keep aggregates segregated and covered; adjust water content for wet stockpiles to maintain mix consistency.

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Roofing Sheets, Ridges, and Gutters

Roofing performance in Mandalika is driven by sheet thickness, coating, and compatibility of accessories.

• Spandek Plain 0.35 × 1 m — Rp 58,665 per meter
• Spandek Plain 0.25 × 1 m — Rp 39,110 per meter
• Multiroof Pasir (textured finish) — Rp 48,001 per m²
• Multitup 0.35 (sheet) — Rp 104,292 per sheet

Ridge and flashing elements must match the sheet profile:

• Bubungan “Ujung” — Rp 57,361 per pcs
• Bubungan “Tepi” — Rp 14,992 per pcs
• Bubungan “Atas” — Rp 16,296 per pcs
• Bubungan Spandek (3 m) — Rp 90,000 per sheet

Gutters tie envelope performance to drainage capacity:

• Square PVC Gutter — Rp 55,000 per meter
• Talang PVC Kotak — Rp 71,702 per meter

Execution notes:

Select sheet thickness by wind uplift and expected roof traffic. Hose‑test valleys, penetrations, and ridge laps before handover. Confirm bracket spacing and fall for gutters to match local rainfall.

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Masonry Units and Stone Cladding

For walls and façades, quality depends on material selection and moisture management.

• Bata Merah Kelas I (Class I red brick) — Rp 1,174 per pcs
• Bataco Pres (pressed concrete block) — Rp 2,999 per pcs
• Andesite “Catur” cladding — Rp 202,067 per m²
• Palimanan stone — Rp 189,030 per m²

In practice:

Use breathable sealers on natural stone in coastal zones. Control weep details and joint spacing to manage water behind cladding. Keep batch logs to avoid shade variation.

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Interior Finishes: Ceramics and Granite

Finishes should be specified by slip resistance and intended use.

• Keramik Lantai Kamar Mandi 20×20 cm — Rp 77,838 per m²
• Granite Tile 40/40 — Rp 190,000 per m²
• Polished Granite 60×60 (Valentino equivalent) — Rp 177,030 per m²
• Granit Unpolished 60×60 (Valentino equivalent) — Rp 247,694 per m²

Execution notes:

Inspect boxes for shade consistency before installation. Use flexible adhesives and mildew‑resistant grout in wet areas.

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Plumbing Interfaces (for roof and site water)

Linking roof water to subsurface lines requires compatible pipe classes and joints.

• PVC RRJ Ø4" (110 mm) — Rp 150,965 per meter
• PVC RRJ Ø6" (160 mm) — Rp 313,153 per meter
• Buis Sigaran Ø30 cm × 1 m — Rp 173,386 per pcs
• Buis Beton dia 80 cm — Rp 100,509 per pcs

Execution notes:

Maintain minimum slopes and compacted bedding; record joints and pressure tests in the site file. Coordinate downpipe positions with gutter capacity to limit splash‑back on façades.

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Documentation, Testing, and Permit Alignment

• Specifications in contracts: Define rebar grades, channel sizes/thickness, sheet thickness and coatings, aggregate requirements, and pipe classes.
• Supplier verification: Request SNI or equivalent certificates, mill test reports, and delivery notes with batch IDs.
• On‑site checks: Slump tests for concrete, torque checks for truss bolts, leak tests for roofs and gutters, and visual checks for aggregate cleanliness.
• Regulatory interface: Keep records aligned with OSS submissions, PBG approvals, and SLF post‑completion. Inspectors assess installed outcomes against approved drawings and specifications.

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Pricing Disclaimer (2025)

All prices listed are indicative as of 2025 and based on internal procurement references. Actual costs in Lombok vary by location (including Central Lombok), supplier stock, and logistics from Java/Bali. In remote or busy zones and under urgent schedules, prices may be higher than shown. Always revalidate current pricing, units, and specifications with suppliers before tenders or purchase orders.

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Summary

For Kuta Mandalika projects, performance hinges on correct steel and fastener selection, controlled concrete mixes, compatible roofing accessories, and coordinated drainage. The prices above provide a working baseline. Execution should prioritize supplier documentation, simple field tests, and permit‑ready records to support reliable delivery and smooth approvals.