What is overscan?
Overscanning is a hangover from older technologies - and if it's turned on, it may be affecting the quality of the image on your...
Assessing the viability of a project
Before taking on a new job, you need to ask yourself if you really want it.
On receipt of tender documents and prior to beginning...
How fluorescent globes work
Ever wondered how these empty-looking tubes of glass manage to provide so much light? Read our back-to-basics explanation of how fluorescent globes work.
Theatrical performers...
Tweeters
Most speakers make use of small, high-frequency drivers called 'tweeters'. Tweeters are responsible for reproducing high pitched sounds, from 1500Hz upwards.
Most loudspeakers with any...
Heat transfer through doors and frames
Doors and door frames, if they're the wrong type, can easily let more heat in and out of your home than you might like....
Special keys
Special keys are any keys that vary from the conventional flat stripped key we're all familiar with. These can be cylindrical, magnetic, or electronically...
Performance considerations for doors
What makes a door 'perform' well comes down as much to its suitability as it does to its quality. Find out how to...
Door soundproofing and insulation
See how draught excluders, weather strips and door sweeps can be fitted (or retrofitted) to doors in order to help improve the energy efficiency...
Door maintenance
Doors generally aren't all that complicated - and fixing them isn't that hard. A little attention when and where it's needed will usually keep...
Door regulations
In most cases you'll have plenty of freedom to choose and arrange doors - but in some circumstances - particularly if your house is...