Step 4 – Technical Drawings

Technical Drawings

GENERAL DETAILS – Technical drawings

The amount of Technical drawings depends on the size of the interior. They can range from between 5 and 50 drawings. In restaurants and bar designs the drawings will typically detail the following:

  • Bar plans and sections
  • Fixed seating details
  • Waiter station details
  • Display details
  • Toilet details
  • Shop front details
  • Ceiling details
  • Door details
  • General details

With retail design the general details differ slightly, and are as follows:

  • Counter plans and sections
  • Display wall details (several drawings)
  • Changing room details
  • Ceiling feature details
  • Toilet details
  • Shop front details
  • Door details
  • General details

During the technical drawings stage we sometimes produce schedules for different aspects of the project using Excel. These cover elements like:

Finishes schedule

This is usually a room-by-room detail of the floor and wall finishes. Most jobs don’t require this as the plans cover the necessary information. It can also lead to duplicating amends on two different sets of information.

Door schedule

On larger projects a door schedule can be very useful They goes into more detail than the drawings are able to and cover items like fire rating, leaf size, ironmongery, door and architrave finish etc.

Scope of works

Occasionally we get asked to do a scope of works. This will explain to the contractors what they need to do in plain writing. It normally covers floors, walls, ceilings and services in separate columns, which can make costing simpler for quantity surveyors and contractors.

So, as you can see this stage of the design can take some time to put together. It sets out the work for the contractor and any other trades people. It’s best to set everything out as clearly as possible. The resulting shop or restaurant interior will run more smoothly on site when the drawings have been worked out correctly and scrutinised. The other plus point is that it takes the pressure off the business owner, freeing them up to focus on the rest of their business.

The technical drawings are the product of the previous design stages. They are key to implementing a good design and getting a firm costing from your contractors. This stage of the interior design is also usually the most time consuming.

During this stage we develop the design of your shop or restaurant interior that has been agreed in the concept stage. Whilst we fine-tune the design we also need to produce something that clients and builders will easily understand. We usually divide the drawings into three segments: plans, sections and general details. If required, we can also produce more schedules.

PLANS – Technical drawings

Below are the types of plans we will normally produce:

General layout plan

These plans will show the general layout (normally covered in the concept design stage) at the technical drawings stage we normally develop this plan and add more detail.

Reflected ceiling plan

The best way to describe the reflected ceiling plan is to imagine slicing the interior space at about 300mm below the ceiling level. You then draw the plan looking up. Because if you did this the plan would be a mirrored image of the general layout plan you reflect it. This gives you a reflected ceiling plan. Here we can show the size and shape of any ceiling features, and most importantly, the lighting layout. We can also include information like smoke detectors and emergency light positions, although emergency equipment plans or licensing plans will often do this.

Wall and floor finishes plan

This plan is simpler to explain. It shows the floor finishes using hatches and patterns, and puts a specification next to them. It can be useful to show the floor levels on the drawings as we may need to build up some areas in order to make everything level. Sometimes with wall finishes it’s only necessary to stipulate the type of wall finish on the plans so that they can be accurately costed. The client will then agree the exact product on site once they have tried out sample areas.

Small power plan

The small power plan contains all the information regarding electrics, power, phone and data sockets. We usually work this in conjunction with the client as it’s one of the operator’s key plans. The client may have a need for occasional items that will require some form of power at another point during the year.

Setting out plan

The contractor usually eagerly anticipates this plan as it sets out the dimensions for the retail or restaurant interior. It is important that all parties understand that the setting out plan is an intent rather than a definitive set of rules. For several reasons surveys can be a little out, or walls may have been lined in a slightly different way than originally planned. For this reason we will put certain measurements down as being site dimensions or equal.

SECTIONS – Technical drawings

We sometimes work them up during the concept stage as they are a very useful way of explaining how the wall of a restaurant or retail interior will be lined. Using a simple line drawing format or colours, the sections explain where different wall finishes start and end. They can also act as a directory for other detailed drawings of the interior.

If we have been engaged as your principle designer one of our final jobs will be to put together an ‘as built’ folder. This will contain a set of ‘as built’ drawings detailing the built version of the project.