Balcony Railing Cost: How to Calculate It for 10, 20 and 30 Feet

The calculation is one line: railing cost = running feet × rate per running foot. The work is in getting both numbers right. This guide shows how to measure the running feet of a balcony, then multiplies it out for 10 ft, 20 ft and 30 ft runs.

The rates used here are the indicative 2026 market ranges from our SS railing price guide, for material and standard installation. The results are budget figures, not a quotation.

How to calculate running feet

A running foot is one foot of railing length measured along the floor edge. Height does not enter into it.

1. Measure every open side of the balcony along the floor line. Sides closed by a wall need no railing and are not counted.
2. Add the sides together. A balcony with a 12 ft front and two open 4 ft returns has 12 + 4 + 4 = 20 running feet. The same balcony set between two walls has only the 12 ft front.
3. Convert to feet if you measured in other units. Divide inches by 12, or multiply metres by 3.281. A 3.05 m run is 3.05 × 3.281 = about 10 ft.
4. Note the corners. They do not change the footage, but each one needs a fitting or a glass joint.

Measure the built balcony, not the drawing. For the full survey, including finished floor level and the slab edge, see how to measure for a railing.

The per-foot rates

• SS 304 pipe railing, no glass: ₹700 – ₹1,200 per running foot
• Glass on a bracket system: ₹900 – ₹1,600
• Glass on a continuous channel: ₹1,200 – ₹2,200
• Frameless glass on spigots: ₹1,400 – ₹2,500

The glass figures assume 12 mm toughened glass. Why the systems differ is explained in the glass railing price guide.

Worked examples: 10 ft, 20 ft and 30 ft

10 ft balcony

A single front edge between two walls. For glass on brackets: 10 × ₹900 = ₹9,000 at the low end and 10 × ₹1,600 = ₹16,000 at the high end. As a frameless spigot railing: 10 × ₹1,400 = ₹14,000 to 10 × ₹2,500 = ₹25,000.

20 ft balcony

The 12 ft front with two 4 ft returns from the example above. For glass on a continuous channel: 20 × ₹1,200 = ₹24,000 to 20 × ₹2,200 = ₹44,000. In SS 304 pipe without glass: 20 × ₹700 = ₹14,000 to 20 × ₹1,200 = ₹24,000.

30 ft balcony or terrace edge

For glass on brackets: 30 × ₹900 = ₹27,000 to 30 × ₹1,600 = ₹48,000. On spigots: 30 × ₹1,400 = ₹42,000 to 30 × ₹2,500 = ₹75,000. The same sums apply to a terrace parapet edge, which is usually the simplest run to install because it is long, straight and level.

Adding SS 316 for a sea-facing balcony

SS 316 adds 20–35% over SS 304. Take the 20 ft bracket figure of ₹18,000–₹32,000. The lowest case is ₹18,000 × 1.20 = ₹21,600 and the highest is ₹32,000 × 1.35 = ₹43,200. When the upgrade is worth paying for is covered in SS 304 vs 316.

What the multiplication does not capture

Running feet × rate gives a budget. A quotation also depends on things the formula cannot see.

• Glass specification. The ranges assume 12 mm toughened glass. An elevated balcony should have laminated glass, which costs more. See the glass thickness chart.
• Height. Residential balcony guarding is commonly about 1 metre, measured from the finished floor. A taller barrier needs more glass and a profile rated for it. Confirm the requirement with our height and standards guide.
• Corners, curves and site work. Corners need fittings, curves are the most expensive feet on a job, and core-cutting or work at height adds labour.
• Handrail and finish. A top handrail adds material, and anodized or powder-coated finishes add a small per-foot premium.
• Scope. Supply-only and supply-and-fix are different numbers. Check each quote against what a railing quotation should include.

The slab edge may also rule a system out before price is considered. Our balcony railing guide explains which systems suit which edge.

Common mistakes in the calculation

• Using the carpet area. Railing follows the open perimeter, not the floor area. A 10 ft by 4 ft balcony is 40 sq ft of floor but may need anything from 10 to 18 running feet of railing, depending on how many sides are open.
• Mixing running feet and square feet. Glass alone is often priced per square foot of area. Do not multiply a per-square-foot glass rate by the running feet.
• Mixing feet and metres. Write the unit on the sketch, and convert once.
• Comparing a supply-only rate with a fitted rate. Ask what each per-foot figure includes before multiplying.

From budget to quotation

Once you have the running feet, send it with the system you prefer, the finished height, whether the balcony is covered, open or sea-facing, and your city. Send your requirement and we will quote the hardware directly.