A contractor who orders too little loses valuable time on repeat orders — and ordering too much wastes budget. This guide helps you calculate how many bags and bales of gravel, sand, mortar and concrete you need for any project.
Quick Summary
✅ A sesame gravel bale ≈ 480 kg — about 0.35 m³; 2 bales = 1 full m³.
💡 One 20kg concrete bag + 2.5L water = approx. 9L finished concrete.
⚠️ In Israel's summer heat — mix in shade, use cold water, don't leave fresh concrete in direct sun.
🔧 A 500kg mortar bale covers approx. 35 m² at 1cm thickness.
📦 Ordering by bale saves 30–40% vs. individual bags.
What You Need Before Starting 🧰
Before any construction work, prepare: a mixer for concrete/mortar, a water bucket with volume markings, site measurements (length × width × depth = m³), screeds and trowels, ready concrete bags (20kg Termokir MO 012 fast concrete ₪37 incl. VAT) or a 500kg bale for large jobs, and sesame gravel bags for drainage sub-base.
⚠️ Warning Before Starting
In Israel's summer (above 30°C) — mix concrete in shade, use cold water, and don't leave fresh concrete in direct sun for more than 20 minutes. Concrete that dries too fast will crack.
Step by Step — How to Do It Right 👷
Step 1 — Calculate quantities: Measure area: length × width × depth (in meters) = m³ needed. For a drainage sub-base, add a 10–15cm layer of sesame gravel. 2 gravel bales ≈ 1 m³.
Step 2 — Lay sesame gravel sub-base: Spread sesame gravel (2–8mm) in a uniform 10–15cm deep layer. Compact with a plate compactor. Gravel provides drainage and prevents moisture wicking from the ground.
Step 3 — Mix a concrete bag: Add 2–2.5 liters of water to a 20kg Termokir ready concrete bag (in summer — use 2L). Mix 3–5 minutes until smooth, no lumps. For fast concrete (MO 012) — working time is about 20 minutes.
Step 4 — Mix render/plaster: Add 4–5 liters of water to a 20kg ready render bag. Mix 5 minutes. For a 500kg mortar bale — work with an industrial mixer in 25–30kg batches.
Step 5 — Pour or apply: Pour finished concrete into formwork within 20–30 minutes of mixing. For mortar — apply in 1–1.5cm layers with a notched trowel.
Step 6 — Curing: In Israel's summer — wet the concrete twice daily for 3–5 days to prevent cracking. In winter — cover with plastic sheeting to prevent freezing.
💡 Pro Tip
Order 10% extra over your calculated quantity — there's always waste, spillage and small miscalculations. Better to return one bag than wait for a second delivery mid-project.
Buy at ramo.co.il 🛒
| Image | Product | Price (incl. VAT) | Stock | Buy |
|---|---|---|---|---|
 | Sesame Gravel Bale 72 / 58 / 58 | ~480kg | **₪119** incl. VAT | ✅ In Stock | 🛒 Buy |
 | Ready Render Bag ~20kg | **₪24** incl. VAT | ✅ In Stock | 🛒 Buy |
 | Fast Ready Concrete Termokir MO 012 | **₪37** incl. VAT | ✅ In Stock | 🛒 Buy |
 | Dry Ready Mortar Bale 500kg RAMO Heavy Duty | **₪119** incl. VAT | ✅ In Stock | 🛒 Buy |
Products You'll Need ⭐
Sesame Gravel Bale Bag 72/58/58 | Approx. 480 kg
₪120
View product
“Lens” Gravel Bag 20 kg
₪24
View product
Ready-Mixed Plaster Bag, approx. 20 kg
₪24
View product
Fast-Setting Ready-Mix Concrete Thermokir MO 012 (Concrete 30 Fast) 🏗️ Termokir
₪37
View product
Dry Ready-Mix Mortar in Bulk 500 kg — Construction Mixture RAMO Heavy Duty
₪120
View productFrequently Asked Questions ❓
What's the difference between sesame and lentil gravel?
Sesame gravel (2–8mm) is for drainage sub-bases, paving and garden layers. Lentil gravel (10–20mm) suits concrete mixes and fill. For floor sub-bases — choose sesame.
How many concrete bags are needed for 1 m³?
1 m³ of B25 concrete needs approx. 250kg of cement. A 20kg Termokir bag yields about 9L of finished concrete. For 1 m³ — approximately 55–60 bags.
How quickly does Termokir fast concrete set?
Fast concrete (MO 012) reaches working strength in 20–30 minutes. Full strength after 24–28 days. Don't load it before 4–6 hours.
Conclusion
All building materials in bales and bags are available at ramo.co.il with fast delivery. Order today and save on transport costs.