Langar Line Queue at the Gurdwara 8 of 10Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/new-to-gurdwara/25846-gurdwara-what-to-expect-simple-overview.html 
Queuing for Langar
Photo © [Khalsa Panth]
The Gurdwara Langar Line
The sangat lines up to receive
langar. Photographs of Sikh martyrs line the walls above their heads.
Eating utensils, trays, cups, and napkins, which may be either disposable or steel, are provided. The meal is prepared by volunteers. Sevadars
serve sangat as they file by the serving area. Langer usually consists of:
- Sabji, a vegetable dish.
- Dhal, a bean or lentil soup.
- Dahee or raitia, plain or spiced yoghurt with cucumbers or other condiments.
- Roti, a kid of flat bread.
- Snacks both salty and sweet.
- Salad and fresh fruit.
- Drinks like water, milk, sodas, and tea made with milk.
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=25846 
Personal note: In some gurdwaras langar may be served with the sangat sitting on the floor only. In others, there may be tables for those who wish to sit in the western style. There is one Gurdwara in Australia where there are 2 langar halls: one traditional, and the other with tables and chairs. When someone is physically challenged or very old, chairs of course are provided. I am almost there, but still hanging in.
Source:
Langar Line Queue at the Gurdwara
__________________
ਜੇ ਕੋ ਮੂੰ ਉਪਦੇਸੁ ਕਰਤੁ ਹੈ ਤਾ ਵਣਿ ਤ੍ਰਿਣਿ ਰਤੜਾ ਨਾਰਾਇਣਾ ॥
jae ko moon oupadhaes karath hai thaa van thrin ratharraa naaraaeinaa ||
If someone is going to teach me something, let that be that the Lord is pervading the forests and fields.