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The Daily Insight

What is the difference between 1st fix and 2nd fix

Author

Lily Fisher

Published Apr 02, 2026

These terms are used throughout the industry and is commonly referred to the carpentry work on a building. First Fix involves the structural work (roof struts, wall studding, framing and joists etc) and Second Fix refers to the finishing work, which is usually done after the plastering.

What is the difference between a 1st fix and 2nd fix nail gun?

The key difference between first fix and second fix nail guns is that first fix nail guns are more powerful machines that use larger nails for heavy duty framing applications. … Second fix nail guns are used for the more delicate finishing work on site, such as door frames, skirting, furniture and more.

What is the difference between first fix and second fix electrics?

First Fix: Positioning and securing of accessory boxes. Second Fix: Preparation and positioning of cables. Third Fix: Termination of conductors to accessories and protective devices.

What is a second fix nail gun used for?

Second fix nailers are used to complete ‘softer’ jobs; they use smaller nails to reduce any potential impressions or damage to the work area. That’s the reason that these nail guns are ideal for more delicate interior work such as door frames, general woodwork finishing and household mouldings.

What is a first fix nail gun used for?

A first fix nailer is generally used to complete rough woodwork, such as wood framing, roofing & flooring. The term “first fix” is applied, as these nailers are intended for use in areas that aren’t going to be exposed upon completion of the project, as larger nails that leave impressions on the wood are used.

What's the best nail gun on the market?

  1. VonHaus Cordless Electric 2 in 1 Nail & Staple Gun. Best nail gun for occasional use. …
  2. Milwaukee M18CN16GA-502X Angled 16G Nail Gun. Best high-end nail gun. …
  3. Ryobi ONE+ 18G AirStrike Nailer. Best mid-price nail gun. …
  4. Tacwise 50mm Brad Nailer. …
  5. Stanley Electric Nail And Staple Gun.

Which nail gun is best?

Best Overall: DEWALT 18-Gauge Brad Nailer Kit DWFP12231 To do this, the nail gun needs to have a tough build and options you can customize while working. The DEWALT DWFP12231 checks all these boxes, making it our top pick.

How long does a second fix take?

Your second fix does seem a bit slow, how long does it take you to do the CU on average? About 5 minutes per accessory is probably about right plus a couple hours for the testing of everything. So perhaps 1/2 hour per room on average unless it has loads of sockets, or AV etc.

What are Brad Nails?

Brad nails, or brads, are made of 18-gauge steel wire. Nail gauge sizes indicate the thickness of the nail. Thinner nails have higher gauge numbers. … In addition to being thinner than standard nails, they also feature a smaller head. The slender profile of brad nails helps to prevent splitting on delicate material.

What does first fix look like?

The first fix It will probably include constructing floors, ceilings and walls, inserting electrical cables and adding pipes for your water supply. Depending on your home extension or loft conversion, it might also include installation of: Telephone wires. Security systems.

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Do you paint before second fix?

5 Answers from MyBuilder Painters & Decorators Painting first and after the final fixing. As all the electric second fix materials are going to stay clean and getting nicer finish.

What size nail gun should I buy?

16-gauge nails are the most versatile size, so a 16-gauge nail gun is a great option if you need it for many different projects. 15-gauge nails are most often used for installing thick trim. 18-gauge and higher-gauge nail guns are best used for fine detail work, furniture repair and thin trim work.

What's the difference between straight and angled nail guns?

They also offer much greater precision. But nailers come in two major types: angled and straight. Angled nailers feature an “angled” magazine near the front of the nail gun, which allows you to use the gun at (obviously) an angle! Meanwhile, straight nailers have straight magazines.

Can you use 16 gauge nails for framing?

Now, for the most part, 16 gauge nails, typically 3 1/2 inches long are the best to use when it comes to framing projects. These are technically called 16-d (or “16-penny”) nails and you often have two choices when framing: common nails and sinkers (forget the rest!).

Are cordless nail guns any good?

Having tested most of the current batch of battery-powered cordless nailers on the market, they perform very well. Most perform as expected and provide hassle-free nailing. Neither pneumatic nor cordless nailers stay jam-free forever, but proper maintenance keeps them firing effectively.

Do all nail guns require a compressor?

While no nail gun requires a specific compressor, each has specific air requirements. Nail guns operate between a range of pressures measured in pounds per square inch (psi). In addition to pressure, nail guns require a minimum volume of air for correct operation. This volume is rated in cubic feet per minute (cfm).

What's the difference between a brad nailer and a straight nailer?

Brad nails are formed from a fine, 18-gauge wire, which means they are smaller in diameter and typically have less holding strength. The benefit to an 18-gauge brad is its size. … Finish nailers will run 15- or 16-gauge finish nails, in both angled and straight varieties depending on the tool.

What nail gun do I need for skirting boards?

Brad nailer: A popular DIY option, the two-inch nails you’ll find in 18-gauge brad nailers make them the skirting board nail gun of choice. Also available in 20-gauge, brad nailers are also the best nail gun for furniture making.

What are 16-gauge nails used for?

  1. Crown and base moldings.
  2. Flooring.
  3. Cabinets.
  4. Casings.
  5. Staircases.
  6. Exterior trim.
  7. Chair rails.

Can you use 18 gauge nails for baseboards?

What gauge nails to use for baseboards? Based on nail size, you should be looking for anything between 15 gauge and 18 gauge. With these gauges it you can easily find nails up to 2.5” long which is an ideal length for baseboard nails.

Can you hammer in finishing nails?

Avoid scratches or hammer dents by using a nail set to finish driving the nail. Use a nail set that is the same diameter as the finishing nail. Center it on top of the nail and hit it with the hammer. Continue hammering until the nail is about 1/8-inch below the surface of the wood.

How long should brad nails be trimmed?

The rule is simple: a brad should be three times as long as the thickness of the material you are fixing. Example: if the material is 15 mm thick, the brad should be 45 mm long.

What gauge finish nailer is best?

The main advantage of a 16-gauge gun is that it’s smaller and lighter. If you’re shopping for a finish nailer, I’d recommend the larger 15-gauge gun, simply because the fatter nails provide more holding power.

What is an 18 gauge brad nailer used for?

18-gauge brad nailers shoot a thin nail between 3/8” to 2” depending on the model. They leave a smaller hole thanks to their small head and so are less likely to split thinner wood. They’re the ideal nailer for attaching casing to window and door jambs because they’re less likely to blow out the connections.

Can I use a brad nailer for baseboards?

You can use a brad nailer to attach baseboards to the wall, though sometimes a finishing nailer might be best. Brad nails are smaller and thinner, ideal for delicate pieces of trim. Finish nails are thicker and have a stronger grip, typically the better choice for tall and long pieces of a baseboard.

What comes after plastering a house?

Dusting off, clearing everything up of any dust / mess. Paint the walls / ceilings. Paint the architraves / skirting boards. Hung new doors.

What is included in first fix plumbing?

First fix -plumbing involves pipework for space heating, water supply and waste water drainage. At the same time electrical installation may take place. Second- fix plumbing involves the connection of appliances, these appliances include radiators, boilers and bathroom sanitary ware etc.

Is tiling part of fixing stage?

Fixing stage is where all the internal cladding (such as plaster), cabinetry, insulation, doors, skirtings, architraves, and waterproofing for wet areas and tiling is all installed. This is also when things really start taking shape, and you can see it all coming together.

What are second fix items?

Second fix comprises those items that are visible in a finished area and are held back to avoid damage, perhaps paintwork or sadly sometimes theft.

What is a 2nd fix carpenter?

Second fix comprises of all the neater work after the plastering to get the house finished. This includes things like fitting doors, skirting boards, architrave, kitchens and other finished carpentry work throughout the house.

Does First fix include Windows?

First fix is generally considered to be the basic construction stage of any building. So for example, brick walls and roofing timbers, door frames, window reveals and basic concrete floor. Fascias and sofitts are fitted to the roof timbers after the roof has been fixed. Guttering is fitted to the fascias.