Usually hostel prices are quoted per bed, and they vary depending on the number of beds per room. Generally, a bed in a larger dorm will be cheaper than a private single or double. Some hotels that are listed on the tpunk site list their prices by the room, but in many small hotels and guest houses in Europe, the cost is per person, whether or not they share a room. (Usually the rate is slightly cheaper if two people share.)
If you're travelling with another person, budget hotel chains like Etap and Formule 1 can work out close to the price of two hostel beds, and the Etaps (which are slightly more expensive) have private bathrooms. Formule 1s have shared toilets. Just another option.