Complete guide to blueprint, construction and house plan paper sizes

Although building sizes and shapes can vary widely, the blueprint paper size upon which each plan is drawn must comply with Philippines standards. The National Building Code of the Philippines (NBCP) establishes uniform requirements for blueprint sizes to ensure project safety and compliance. The country follows ISO standards, which use the A series for paper sizes.

This guide discusses the drawings needed for constructing a home and the correct house plan paper size requirements for those various drawings.

Architectural drawings include more than a floor plan. They include site, landscape, as-built, cross-section, and elevation plans. Each drawing provides essential detail for approval and construction. Construction plans often accompany architectural drawings. These detailed plans show electrical, HVAC, and plumbing details for home construction.

Architectural drawings use a standard measurement for floor plans of a building based on the aspect ratio. Most house plans use a metric scale of 1:150 or 1:100 instead of the eighth- or quarter-inch US scale. Standard construction plans print on A1, A2, and A3 paper sizes.

Floor Plans

Site Plans

Cross-Section Drawings

Landscape Drawings

Elevation Drawings

Excavation Drawings

Construction Drawings

As-Built

What Are the Standard Blueprint Paper Sizes?

In the Philippines, construction projects often require A-series sizes like A1 and A2 for detailed architectural plans, following international ISO standards. These are designated as the A series, beginning with A0 through A10.

Architectural Paper Sizes

Engineering Paper Sizes

How to Choose the Right Paper Size for Your Project

Selecting the correct paper size is crucial for ensuring that your blueprints, construction plans, or architectural drawings are clear, detailed, and easy to understand. When deciding, consider the following factors:

Project Type and Detail: For highly detailed plans, such as electrical or structural drawings, larger formats like A1 or A0 provide ample space for intricate designs. Smaller projects, like room layouts or component plans, may be suitable for A3 or A2.

Viewing Distance and Purpose: If the plans will be displayed for a group or used on-site, larger formats help maintain visibility. For individual reference or documentation, smaller paper sizes can be more practical.

Printing Costs and Efficiency: Larger formats typically cost more to print. Assess the number of copies and project budget to balance cost and readability. Bulk printing on efficient plotter printers can save time and resources, especially for large construction projects.

Standards and Compliance: Always check local industry standards. In Malaysia, adhering to ISO standard sizes (A series) ensures consistency across different types of construction and engineering documentation, facilitating easier review and collaboration.

Choosing the right paper size ultimately depends on the specifics of your project. By considering these factors, you can ensure your plans are both functional and professionally presented.

At a minimum, three sets of drawings with the right blueprint paper size should be created: one each for the owner, the architect, and the approval board. Reliable large-format printing solutions are essential in Metro Manila and other growing cities to keep projects on track and meet tight deadlines Once approved, additional sets will be needed for contractors and subcontractors. Whether you need multiple copies or just one, contact us to discuss your printing needs. We have the resources to help you print large format paper sizes.