Even Spacing Calculator - Precision Layout Tool

Perfect Spacing, Every Time

The Even Spacing Calculator is the ultimate tool for woodworkers, DIY enthusiasts, and construction professionals who need perfectly distributed layouts in seconds. Whether you're installing railing balusters, fence pickets, deck planks, bookshelves, or wall art, this app handles the complex math so you can focus on building.

The Problem with Traditional Methods

Before: Manual Calculation

Time-consuming trial and error
Scrap paper covered in crossed-out math
Uneven spacing that looks amateur
Wasted materials from mistakes
Frustration and rework

After: Even Spacing Calculator

Instant, accurate results
Professional measurements in seconds
Perfectly even distribution
Zero waste from calculation errors
Confidence and precision

🔧 Key Features

Imperial Precision

Customize accuracy up to 1/64" for meticulous detail work. Perfect for fine woodworking where every fraction matters.

Metric Support

Now supports both Imperial (inches) and Metric (mm) measurements. Work in whatever system you prefer.

On-Center Measurements

Get the exact center-point for every piece, ensuring perfect alignment for posts, balusters, and more.

Detailed Measurement Table

Toggleable view that lists the "start" and "center" positions for every single piece—perfect for long runs like fences or decks.

Edge Offset Controls

NEW: Set inset spacing from edges for professional-looking layouts with proper margins.

Item Thickness Calculator

NEW: Calculate exact spacing including the width or thickness of your materials for gap-accurate layouts.

Export & Share

Save and share your measurements with your team or for future reference. No more losing your calculations.

100% Free

No subscriptions, no ads blocking your view, no paywalls. Professional tools shouldn't cost a fortune.

📐 Perfect For

Carpentry & Woodworking

Balusters, spindles, shelving, cabinet hardware, and trim work. Get professional results every time.

Construction Projects

Fence posts, deck boards, siding, framing studs, and structural layouts. Build with confidence.

Home Decor & Design

Picture frames, wall hooks, gallery walls, floating shelves, and lighting fixtures. Achieve that designer look.

Outdoor Projects

Deck railings, fence pickets, pergola beams, and garden borders. Perfect outdoor spacing in any weather.

Furniture Building

Drawer pulls, shelf pins, table legs, and decorative details. Precision for custom furniture.

DIY Enthusiasts

Any task where "eyeballing it" just isn't good enough. Stop guessing, start measuring.

How It Works

Using the Even Spacing Calculator is simple:

Enter your total length – The distance you need to fill (wall, fence, deck, etc.)
Input the number of pieces – How many items you're installing
Add item width (optional) – The thickness or width of each piece
Set edge offsets (optional) – Inset from the edges if needed
Get precise measurements – Instant calculations with exact spacing between and center positions for each piece

View the detailed table to see start and center measurements for every single piece. Export your layout to reference while working, or share it with your crew.

The ProDirt Difference

Like all ProDirt apps, Even Spacing Calculator follows our core principles:

No Subscriptions: Free forever. Professional tools shouldn't require monthly payments.
Privacy First: Your measurements stay on your device. No cloud uploads, no tracking.
Works Offline: No internet required. Use it on the job site, in the shop, anywhere.
Built by People Who Build: Designed by someone who understands the frustration of uneven spacing.