Page 14 - House Style of Sketching_2023_Rev3

Refill leads are available in a wide range of hardness with HB and 2H the
industry standard for design sketching. For some technical detailing the Types of Line Description Thickness mm
use of blue lead is permitted. However sketching in blue does not suit
every project or every sketching style so use only when appropriate. Construction Lines Lines you can barely see. The 0.05 - 0.1
scaffolding of a sketch

Internal Lines Detailing lines. The most common 0.1 - 0.3
equipment
lineweight you will use
External Lines/ the Lines drawing the eye to the 0.3 - 0.5
‘silhouette’ ouside object

Shadow Lines Where the object sits on the 0.5 - 0.7
ground or casts a shadow

Fig 2.5 Pen diameter use - Dr PJ White
2.5 Polychromo Pencils

The addition of colour to any sketchwork gives depth adding information
and realisation. The use of appropriate rendering pencils are essential to
achieving this. Polychromo pencils provide consistency of colour and work
well with other mediums such as pens and markers. Colours can be
individually replaced and the leads have a high level of break resistance.
Fig 2.3 Pentel Graphgear 1000 Mechanical Pencil & Leads and Faber Castell Coloured Leads
When cared for they have longevity. The recommended brand is Faber
Castell.
2.4 Felt Tip Pens

Using ink when sketching can help
develop confidence allowing a
designer to commit to their sketch
and assist in removing the risk
factor of ‘mistakes’. Varying
dimensions of felt tips offer
designers the opportunity to add
depth, detail and impact when
sketching. 0.1, 0.3, 0.5 and 0.7mm
black ink felt tip pens are specified.
Recommended brands include
Unipin, Fineline and Edding 1800.
Fig 2.4 Unipin Felt Tip Pens

Fig. 2.6 Faber Castells Polychromos
8