Especially for waste and vent sizing, the conversion from fixture units to pipe sizing is standard for all cases for the UPC and IPC. Generating sizing charts for cold and hot water, automatically through a series of settings possibly, would be probably more difficult to implement but equally helpful to make sizing plumbing easier.

Add a command to allow you to edit the settings on multiple rooms at a time.

Add an option to require a set number of spare breakers on every panel. The other breakers in the panel would be listed as spaces.

It would be nice to at least have the command to match diffuser callout location.

Add an option to allow loop feeds for transformers.

In the UPC and IPC the conversion from water closet counts and urinal counts to a number of fixture units is a standard table. Adding this to Design Master would be a small change yet very helpful.

Add more complicated options for callouts on equipment.

Add MCA and MOCP as notes on the callout on the drawing.

See images on this forum post for examples:
http://forums.designmaster.biz/index.php?showtopic=1817

If you vote for this, it would be helpful if you could leave a comment letting us know what values you want displayed in the equipment callout.

As the word of this software is increasing in Canada, it would be a good idea to have the capabilities of incorporating the Canadian Electrical Code into Design Master.

Currently, when a Direct 90-degree Vertical at Wall returns back from the wall on top of the pipe going towards the wall, the pipe on top hides the underneath pipe. A common way of representing this in 2-D models is by adding a "jog" in the pipe. However, in the isometric model the jog doesn't need to appear because overlapping isn't a problem. Automatically showing this "jog" on the 2-D model would make representing these cases much easier.

For modeling complete solar systems.

MV conductor insulation is much larger so you cannot get as many conductors inside a conduit. if you're using design master to calculate your feeder conduits it will be incorrect over 600v. I don't believe this is readily apparent now.

Add the ability to specify a breaker trip setting and plug size for adjustable trip breakers.

Be able to insert valves on vertical pipes. Valves would be displayed on isometric and possibly also on plan view.

We can assign layers based on one-line (panel) or circuit or devices however not all parts of circuit are on the same layer. I may run some in the slab and some in the walls. Having the ability toi use the manual loop tool to change the layer system would be helpful. Also having the ability to assign a device to multiple layers would be helpful as well.

Or have some of the loops new and some existing.

Use different layers for new and existing circuits in panel schedules or new and existing equipment in equipment schedules.

It would be a great tool if we can have the ability to import model information from Revit drawings which are done by architects. A simple feature would be importing the rooms. This would speed up the process and make designs happen faster.

On low voltage systems drawings (Fire Alarm, Security, CCTV) we treat homeruns differently than power and lighting homeruns. We do not use the circuit label, wire callout, or tick marks, but rather we use a keynote. If there was a “keynote homerun”, it would save us the time spent removing the wire call-out every time we create low voltage homerun.

Add an option to control the vertical alignment of text in schedule cells.

Currently everything is justified to the top of the cell. Make it so that text can be centered or at the bottom instead.