
North American Deck & Railing Association
ONE-STOP ENGINEERING FOR THE MEMBERS OF

North American Deck & Railing Association
Premier Members & their referrals receive discounted prices, expedited service, fast processing, incentives and concierge service.
Providing Premier Engineering Support For These NADRA Members
On Demand Engineering From Our Plan Store
NADRA Premier Members & their referrals receive discounts & incentives on Readymade plans for permit & construction.
Contact Us for your discount codes which will appear on your plan store dashboard upon login.

DECK & RAILING INDUSTRY KNOWLEDGE BASE
For decks on grade, deck girders shall be supported as specified on approved engineering plans using products such as NADRA member NCP Industries Handi-Block or Handi Pier. Click here to learn more.
Differences Between Designing a Railing For General Use vs. Rooftop Mechanical Equipment
Installing A Railing Around Mechanical Equipment? It could be easier than you think. Railings around mechanical equipment, as opposed to general use pedestrian railings, can
How To Determine Uplift Reactions For Canopies-Carports-Pergolas
Canopies & Wind Uplift – An Introduction First, Understand This A backyard canopy or pergola, trellis, or a lightweight sunroom/screen room attached to the back
Is A Top Rail Required For A Glass Railing?
Glass Railings – The Next Big Thing Aesthetically pleasing, clean and one of the biggest architectural trends, the glass railing is fast gaining popularity as
Why are spacing, edge distance, and embedment important for concrete anchors?
Why are spacing, edge distance, and embedment important for concrete anchors? Anchors transfer loads into concrete, making them vital for safe design. Their strength depends
Is Steel or Reinforcing or Fibermesh Required in Posts & Footings of Building Components?
INTRODUCTION The main purpose foundations serve is to distribute and resist the forces or loads experienced by the host structure due to wind, rain, snow,
Types of At-Grade Footings Explained
Choosing the Right Footing for Patios, Pergolas, and Sunrooms Every great structure begins below the surface. For sunrooms, pergolas, carports, and patio covers, the footing
About Lag Bolts-Screws In Wood – Size – Pullout – Shear
Lag screws are some of the toughest types of screws available. When it comes to fastening heavy materials in construction and woodworking, lag bolts and
Handrail and Guardrail Design Guidelines
What To Know When Designing & Installing Handrails & Guards About Stair Requirements The International Residential Code (IRC) contains railing guidelines similar to those found
Designing Interior Glass? Here are some engineering code items to consider
Interior Glass: Not Just For Looks When designing interior glass, you must consider both structural concerns and code requirements to ensure safety, functionality, and performance—
Frost Protection For Concrete Footings On Grade – Heave Explained
Footings Move When Soil Freezes. Let’s Explain. Building codes describe the design requirements of shallow foundations in regions where soil is subjected to seasonal ground
What’s the minimum penetration for lag screws into wood?
Per the 2015 National Design Specification for Wood Construction (NDS 2015), section 12.1.4.6, the minimum length of lag screw penetration Pmin not including the length